Receiving treatment and health care, following measures to prevent the Corona virus, conducting periodic examinations and follow-up, a close-up blurry image of a Saudi Gulf Arab man lying on the bed wearing an operating uniform and wearing an oxygen mask, holding the nurse’s hand and looking at him, blue background
The concept of medicine and health care, following measures to prevent the Corona virus, conducting examinations and follow-up, a close-up blurry image of a Saudi Gulf Arab man lying on the bed wearing an operating uniform, wearing an oxygen mask, holding the nurse’s hand and looking at him with a smile on his face, blue background
Smiling, looking and paying attention to the nurse to hear medical instructions, medical care services in Saudi hospitals, a close-up blurry image of a Saudi Gulf Arab man lying on the bed wearing an operating uniform, conducting periodic examinations and follow-ups for patients, blue background
Looking at the mobile phone and taking a souvenir photo, the concept of medicine and health care, receiving treatment and care in the hospital, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed with his wife and daughter standing next to him, gestures of joy and pleasure, blue background
Taking souvenir selfies and looking at the mobile phone, gestures of joy and pleasure, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed with his wife and daughter standing next to him, the concept of medicine and health care, receiving treatment and care in the hospital, blue background
Exchanging conversations and news with family and friends, making a video call via mobile phone, following measures to prevent the Corona virus and quarantine, a close-up overhead portrait of a sick Arab Gulf Saudi man wearing an operating uniform lying on the bed using a mobile phone, blue background
Taking souvenir selfies, making a video call via mobile phone, using modern and advanced technology, following coronavirus prevention and quarantine measures, portrait of a sick Saudi Gulf Arab man wearing an operating uniform lying on the bed using the phone, blue background
Receiving treatment and medical diagnosis in the hospital, looks full of hope and love, close-up portrait of a sick man, a Saudi Arabian Gulf Arab, wearing an operating uniform, lying on the bed looking at his wife with expressions of tenderness, consoling and comforting the patient, the concept of medicine and health care, blue background
Taking souvenir selfies via a mobile phone, using advanced modern devices and technologies, making a video call via mobile, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed with his family standing next to him, the concept of medicine and health care, blue background
Caring for patients and diagnosing them, writing down medical information and notes, portrait of a sick Saudi Gulf Arab girl wearing an operating uniform, lying on the bed, receiving treatment and care in a children’s hospital, gray background
Medical care services in Saudi hospitals, a portrait of a Saudi Gulf Arab nurse wearing a work uniform and a mask, recording and writing down the patient’s information, following measures to prevent the Corona virus, conducting periodic examinations and follow-ups for children, blue background
Receiving treatment and care in the children’s hospital, taking care of patients and making a therapeutic diagnosis for them, writing down medical information and notes, a close-up portrait of a sick Saudi Arabian Gulf girl wearing an operating uniform, lying on the bed, gray background
Providing health care in the hospital, women’s professions and jobs, the concept of care and concern for patients, a portrait of a Saudi Gulf Arab nurse opening the venous artery of a sick girl wearing an operating uniform lying on the bed, the sick person’s feeling of fatigue, pain and exhaustion, blue background
Medical therapeutic diagnosis in the Kingdom’s hospitals, a close-up portrait of a Saudi Gulf Arab nurse wearing a mask and work uniform, writing down patient information, following precautionary prevention measures against the Corona virus, avoiding the spread of viral infection, blue background
The feeling of a person suffering from exhaustion and fatigue and the importance of taking care of him, caring for and taking care of the patient, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform, lying on the bed with an oxygen mask next to him, his daughter kissing his hand, gestures of sadness and sympathy for her father, blue background
The concept of medicine and health care, following the procedure to prevent the Corona virus, the importance of doing regular check-ups for children, providing psychological support to patients, a close-up portrait from the side of a Saudi Gulf Arab nurse wearing a work uniform and a mask standing next to the sick girl, blue background
Standing straight and looking at the camera, quality of medical services in Saudi Arabia, portrait of a Saudi Gulf Arab man accompanied by a male and female nurse wearing work uniforms in a hospital, follow-up of medical cases and therapeutic diagnosis of patients, Saudi professions and jobs, full body portrait, blue background
Caring for the patient, taking care of him, gestures of kindness and tenderness, a portrait of a Saudi Arabian Gulf man wearing an operating uniform, lying on the bed, placing an oxygen mask next to him, his wife and daughter smiling, the feeling of the person suffering from exhaustion and fatigue and the importance of taking care of him, blue background
Receiving medical treatment and diagnosis in the hospital, medical care services in Saudi hospitals, following coronavirus prevention and quarantine measures, a close-up blurry image of a sick Saudi Gulf Arab man wearing an operating uniform lying on the bed, blue background
The concept of medicine and health care, receiving treatment and medical diagnosis in a hospital, medical care services in Saudi hospitals, following measures to prevent the Corona virus and quarantine, a close-up portrait of a sick Saudi Gulf Arab man wearing an operating uniform lying on the bed, blue background
Exchanging glances filled with hope and love, consoling and comforting the patient by holding his hand, portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed wearing an oxygen mask looking at his daughter, health care and medicine, receiving treatment and care in the hospital, blue background
The feeling of the person suffering from exhaustion and fatigue and the importance of taking care of him, caring for and taking care of the patient, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed with an oxygen mask next to him, his wife and daughter smiling, gestures of kindness and tenderness, blue background
Saudi professions and jobs, standing up straight and looking at the camera, quality of medical services in Saudi Arabia, portrait of a Saudi Gulf Arab man accompanied by a male and female nurse wearing work uniforms in a hospital, following up on medical conditions and therapeutic diagnosis of patients, full body photo, blue background
Providing medical consultations in hospitals, health care, medicine and treatment, a portrait of a Saudi Gulf Arab man lying on the bed wearing an operating uniform and wearing an oxygen mask, following precautionary measures against the Corona virus, looks filled with optimism, hope and smile, blue background
Medicine and health care, providing consultations and therapeutic services to patients, a close-up portrait of a Saudi Arabian Gulf nurse wearing a work uniform and a mask, providing physical therapy to the patient, working in Saudi medical centers and hospitals, receiving treatment and hospital care, blue background
Receiving treatment and care, caring for patients and diagnosing them, a close-up portrait of a sick Arab Gulf Saudi man wearing an operating uniform, lying on the bed with an oxygen mask and his daughter next to him, writing down medical information and notes, providing consultations and therapeutic services, blue background
Looks full of hope and love, a close-up portrait of a sick Saudi Arabian Gulf man wearing an operating uniform lying on the bed looking at his wife with expressions of tenderness, receiving treatment and medical diagnosis in the hospital, concept of medicine and health care, blue background
Receiving medical care at home, a vertical portrait of a Saudi Arabian Gulf nurse measuring the temperature (thermometer) of a sick child lying on his bed, receiving treatment and medical care, the concept of medicine and health care, beige background
Looks full of hope and love, portrait of a sick Saudi Arabian Gulf girl wearing an operating uniform, lying on the bed looking at her father with expressions of tenderness, receiving treatment and medical diagnosis in the hospital, concept of medicine and health care, blue background
Following measures to prevent the Corona virus, providing therapeutic and health services in the hospital, medical professions and jobs in Saudi Arabia, portrait of a Saudi Gulf Arab nurse wearing a work uniform, standing with crossed hands accompanied by a nurse holding a patient information file in his hand, full body image, blue background
Health care and the concept of medicine, receiving treatment and care in the hospital, looks filled with hope and love, consoling and comforting the patient, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform, lying on the bed, wearing an oxygen mask, looking at his daughter and holding her hand, blue background
The concept of medicine and health care, looks full of compassion, tenderness and concern, receiving treatment and care in the hospital, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform lying on the bed, his wife and daughter standing next to him with a smile on their faces, blue background
Health care and the concept of medicine, receiving medical treatment and diagnosis, following precautionary measures against the Corona virus and quarantine, medical care services in Saudi hospitals, portrait of a sick Saudi Gulf Arab man wearing an operating uniform lying on the bed, blue background
The concept of medicine and health care, receiving treatment and care in a hospital, a portrait of a Saudi Gulf Arab nurse wearing a work uniform and a mask, writing down patient information, preventing the Corona virus, working in Saudi medical centers and hospitals, providing services to patients, blue background
Conducting periodic examinations and follow-ups for patients, providing consultations and therapeutic services, a close-up portrait of a Saudi Gulf Arab nurse wearing a work uniform and a mask, recording and writing down patient information, medical care services in Saudi hospitals, blue background
Looks filled with optimism, hope, and smiles, providing medical consultations in hospitals, health care and treatment, a close-up portrait of a Saudi Gulf Arab man lying on the bed wearing an operating uniform, wearing an oxygen mask, following precautionary measures against the Corona virus, blue background
Working in Saudi medical centers and hospitals, the concept of medicine and health care, receiving treatment and care in the hospital, a portrait of a Saudi Gulf Arab nurse wearing a work uniform and a mask, writing down patient information, preventing the Corona virus, providing services to patients, blue background
Using modern and advanced technology, looking at the camera with gestures of joy and hope, following measures to prevent the Corona virus and quarantine, portrait of a sick Arab Gulf Saudi man wearing an operating uniform lying on the bed using the phone, blue background
The concept of care and concern for patients, a close-up portrait of the hand of a Saudi Arabian Gulf nurse opening the venous artery of a sick girl wearing an operating uniform lying on the bed, the sick person feeling tired, pain and exhaustion, providing health care in Saudi hospitals, blue background
Entertainment and entertainment through applications and electronic programs, the use of modern and advanced devices and technologies, a close-up blurry portrait of a sick Saudi Arabian Gulf girl, smiling, wearing a headphone and an operating uniform, holding a tablet in her hand, special hospitals for children in the Kingdom, blue background
Exchanging glances filled with optimism, hope, and smiles, receiving treatment and health care, following measures to prevent the Corona virus, a close-up portrait of a Saudi Gulf Arab man lying on the bed wearing an operating uniform, wearing an oxygen mask and holding the nurse’s hand, blue background
Recording medical information and notes, providing consultations and therapeutic services, receiving treatment and care, caring for patients and providing therapeutic diagnosis for them, portrait of a sick Saudi Arabian Gulf man wearing an operating uniform lying on the bed with an oxygen mask on and his family next to him, blue background
Receiving medical care at home, a vertical portrait of a Saudi Arabian Gulf nurse checking the blood pressure (sphingosmanometer) of a sick woman lying on her bed, receiving treatment and medical care, the concept of medicine and health care, beige background
Conducting periodic examinations and follow-ups for patients, medical care services in Saudi hospitals, a portrait of a Saudi Arabian Gulf nurse wearing a work uniform and a mask, recording and writing down patient information, providing consultations and therapeutic services, exchanging glances between father and daughter, blue background
Using modern and advanced devices, making a phone call, following coronavirus prevention and quarantine measures, receiving treatment and health care, a close-up blurry image of a sick Saudi Gulf Arab man wearing an operating uniform lying on the bed using the phone, blue background
Recording general information about the patient’s condition, a close-up portrait of a Saudi Gulf Arab doctor wearing a uniform and wearing a medical examination stethoscope, an elderly Saudi Gulf Arab patient wearing a traditional thobe and shemagh sitting in a wheelchair, full-length body portrait, gray background, sensitive content, sensitive use
Women's professions and jobs, the concept of care and concern for patients, a portrait of a Saudi Arabian Gulf nurse opening the venous artery of a sick girl wearing an operating uniform lying on the bed, the sick person's feeling of fatigue, pain and exhaustion, providing health care in the hospital, blue background
Thanking and appreciating the doctor for his efforts and medical care, providing the best health services to elderly patients in the hospital, portrait of a Saudi Arabian Gulf man wearing traditional dress and a shemagh shaking hands with a nurse, concept of medicine and health care, gray background
Medical care services in hospitals, receiving treatment and health care, following measures to prevent the Corona virus, providing consultations and therapeutic services, conducting periodic examinations and follow-ups, a close-up blurry image of a Saudi Gulf Arab man lying on the bed, blue background
The concept of working in the health sector, a close-up portrait of a Saudi Gulf Arab doctor wearing a medical coat holding a blue ribbon for prostate cancer awareness, an open palm raised to warn against neglecting to detect the disease, gestures to stop neglecting physical health, a blue background
Cheerful gestures while working in the medical sector, portrait of a smiling Saudi Arabian Gulf doctor wearing a coat and stethoscope reading medical reports, full-length body image, black background, sensitive content, sensitive use
A Saudi Arabian Gulf doctor, wearing a medical coat and a stethoscope in the hospital, reviews a medical report for a sick case, examining and diagnosing sick cases, medical professions and jobs, the concept of medicine and health care, medical examinatio
Following measures to prevent the Corona virus, writing down and recording the patient’s information, a portrait from the side of a Saudi Gulf Arab nurse wearing a work uniform and a mask giving information to the doctor, the concept of caring for health, working in the Saudi medical sector, full body image, blue background
Early detection of diseases and following prevention methods, the concept of medicine and health care, a close-up portrait of a Saudi Arabian Gulf doctor wearing a medical coat and stethoscopes, pointing with his index finger to the Prostate Cancer Awareness logo, blue background.
Caring for patients and recording medical notes, following up on patients and recording their medical conditions, close-up portrait of a Saudi Gulf Arab doctor wearing a coat and stethoscope writing a medical report, black background, sensitive content, sensitive use
Looking at the camera with happy gestures, working in the health sector in Saudi Arabia, providing medical services, recording general information about the patient’s condition, close-up portrait of a smiling Saudi Arabian Gulf nurse wearing a uniform with an examination stethoscope, gray background
Providing treatment and medical care in hospitals, working in hospitals and medical centers, the concept of medicine and health care, a close-up photo of a veiled Saudi Arabian Gulf doctor, smiling, wearing a white medical coat and a stethoscope and looking at the camera, women’s professions and jobs, background of the hospital corridor
Attention and care for the patient and his care, the feeling of the person suffering from exhaustion and fatigue and the importance of taking care of him, a close-up portrait of a Saudi Arabian Gulf man wearing an operating uniform lying on the bed with an oxygen mask next to him, his wife and daughter smiling, gestures of kindness and tenderness, blue background
Consoling and relieving the patient by holding his hand, a close-up portrait of a Saudi Gulf Arab man wearing an operating uniform, lying on the bed, putting on an oxygen mask, looking at his daughter, health care and the concept of medicine, receiving treatment and care in the hospital, looks filled with hope and love, blue background
Diagnosing medical conditions, a Saudi Arabian Gulf doctor wearing a white medical coat and an examination stethoscope looking at the camera with a smile, providing therapeutic services, using medical technical devices to examine the patient, background of the medical clinic
Caring for patients and diagnosing them therapeutically, writing down medical information and notes, a blurry close-up image of a Saudi Arabian Gulf nurse wearing a work uniform and a mask, receiving treatment and care in the hospital, providing consultations and therapeutic services, the concept of medicine and health care, blue background
General medical examination procedures for the elderly, portrait of a Saudi Arabian Gulf nurse wearing a uniform, gloves and a protective mask examining the ear of an elderly patient wearing traditional dress and a shemagh sitting on a chair, using modern medical tools, gray background
The use of a first aid bag in medicine, the use of a mobile phone in the medical field, a portrait of a Saudi Gulf Arab doctor wearing a white coat and an earphone sitting behind the desk making a phone call and reading medical reports, black background, sensitive use, sensitive content
A picture of a Saudi Arabian Gulf doctor wearing a medical coat and a stethoscope, writing a medical report for a sick condition, medical examination, providing medical services to patients, examining and diagnosing disease cases, writing the patient's tr
Ready to provide services to patients with all efficiency, concept of medicine and health care, close-up portrait of a smiling Saudi Arabian Gulf Arab doctor wearing traditional thobe and shemagh wearing a stethoscope and mask holding a medical syringe in his hand looking at the camera with an expression of self-confidence
Working in the Saudi health sector, providing medical consultations and services in Saudi hospitals, portrait of a Saudi Gulf Arab male and female nurse wearing work uniforms preparing medical reports for the patient, concept of medicine and health care, blue background
Rapid diagnosis, medical examination and home health care, close-up portrait of a nurse wearing a mask and gloves measuring the blood pressure of a Saudi Arabian Gulf patient in traditional dress sitting on a sofa, working in the Saudi health sector, regular follow-up to check blood pressure at home, blue background
Portrait of a Saudi Arab doctor and a Saudi female doctor with a young child, reviewing and receiving medical advice, the concept of medicine and health care, medical examination for children, providing health care and services, diagnosing the patient’s c
Providing the best health services to elderly patients in the hospital, a portrait of a Saudi Gulf Arab man wearing a traditional dress and a shemagh sitting in a wheelchair shaking hands with a nurse, thanks and appreciation to the doctor for his efforts and medical care, gray background, sensitive content, sensitive use
Study of patient cases through modern devices and technologies, portrait of a Saudi Gulf Arab doctor, wearing a stethoscope, using a laptop, the concept of medicine, using modern technical devices, common background, sensitive use, sensitive content
A Saudi Arabian Gulf doctor wearing a medical coat and sitting in her office, talking with a Saudi Gulf patient, following up the patient's medical record, providing medical consultations, describing the disease, the concept of medicine and health care
Looking at a piece of paper in the shape of a mustache with proud gestures, the medical profession and work in the health sector, International Men’s Day November 19, portrait of a Saudi Arabian Gulf doctor wearing a medical coat and stethoscopes, standing straight with crossed hands, full length of the body, blue background
Doctors follow up on their patients using modern technologies, a close-up portrait of a Saudi Gulf Arab doctor wearing a stethoscope, using a laptop to write medical reports, background, sensitive use, sensitive content
Periodic follow-up to check blood pressure at home, rapid diagnosis, medical examination, and home health care, close-up portrait of a nurse wearing a mask and protective gloves measuring the blood pressure of a Saudi Arabian Gulf patient wearing traditional clothing sitting on the sofa, working in the Saudi health sector, gray background
Gestures of welcoming patients and requesting a seat, preparing medical reports, treating patients well, a close-up portrait of a Saudi Gulf Arab doctor wearing a traditional dress and a medical coat and holding test results in his hand, spreading reassurance in people’s souls, full-length body image, black background
Receiving patients with smiles and a warm welcome, providing services to patients efficiently, the concept of medicine and health care, a close-up portrait of a nurse providing treatment to a Saudi Gulf man wearing a uniform on a wheelchair, full-length body image, gray background, sensitive content, sensitive use.
Meeting the demands of remote health care using modern technologies, offering medical services and applications over the phone, a close-up portrait of a Saudi Gulf Arab doctor holding a mobile phone in his hand, black background, sensitive content, sensitive use
A Saudi Gulf Arab doctor talking with a Saudi Gulf patient, following up the patient's medical record, providing medical consultations, describing the disease, the concept of medicine and health care
A Saudi Arabian Gulf doctor wearing a medical coat and a stethoscope, providing medical care to the patient, providing medical consultations and health services, the concept of medicine and health care, hospitals and health centers
A Saudi Arabian Gulf doctor wearing a medical coat and a medical stethoscope in the hospital writes a medical report for a diseased condition, medical examination and medical services for patients, examination and diagnosis of disease cases, writing treat
The concept of providing home health care services, physical injuries and health problems, urgent emergency health cases, portrait of a Saudi Arabian Gulf first aid nurse wearing a medical uniform sterilizing the wounds of a man on the sofa at home, gestures and expressions of sadness and pain, gray background
A sick Saudi Arabian Gulf girl lying on a hospital bed, receiving treatment and care in the hospital, performing an operation, a children's hospital, the concept of medicine and health care
An old man, Arab, Gulf, Saudi, patient lying on a hospital bed, receiving treatment and care in the hospital, performing surgery, a hospital for the elderly, the concept of medicine and health care
Providing physical therapy to the patient, providing consultations and therapeutic services to patients, portrait of a Saudi Arabian Gulf nurse wearing a work uniform and a mask, the concept of medicine and health care, working in Saudi medical centers and hospitals, receiving treatment and hospital care, blue background
Attention and care for patients with disabilities, providing services and special needs with all efficiency, the concept of medicine and health care, a close-up portrait of a nurse shaking hands with a crippled Saudi Gulf Arab man wearing traditional clothing, gray background, sensitive content, sensitive use.
Gestures of admiration and approval for early detection, the concept of working in health centers and hospitals, a close-up portrait of a Saudi Gulf Arab doctor wearing a medical coat and stethoscopes, holding a blue ribbon in his hand for prostate cancer awareness, blue background.
Providing medical assistance to patients, working in health centers and hospitals, portrait of an Arab Gulf Emirati female doctor wearing a white medical coat and a stethoscope, a young Saudi woman standing sideways, the concept of medicine and health care, white background
Working in hospitals and medical centers, a portrait of a smiling Saudi Arabian Gulf doctor wearing a shemagh and a white medical coat wearing a heartbeat stethoscope, standing with crossed hands and looking at the camera with expressions and self-confidence, the concept of medicine and health care, full body image, gray background
Providing the best health services to elderly patients in the hospital, portrait of a nurse wearing a special uniform, gloves and a protective mask reassuring a Saudi Arabian Gulf man wearing traditional dress and a shemagh, concept of medicine and health care, appreciation of the doctor for his efforts and medical care, gray background
Looking at a specific thing, portrait of a smiling Saudi Arabian Gulf doctor wearing a coat and stethoscope, standing straight with gestures of self-confidence, black background, sensitive content, sensitive use
A Saudi Arabian Gulf doctor wearing a medical coat and a stethoscope, different facial and hands gestures, working in the health sector, providing medical consultations and health services, the concept of medicine and health care
Providing health services to patients, the concept of medicine and health care, a portrait from the side of a smiling Saudi Arabian Gulf doctor wearing a shemagh and medical coat, working in the health sector in Saudi Arabia, full-length body photo, black background
Portrait of a smiling Saudi Arabian Gulf girl wearing a medical coat for the medical profession, holding a medical syringe and the corona vaccine in her hand, vaccination against the corona virus, following prevention and safety measures, health awareness
An old man, Arab, Gulf, Saudi, patient lying on a hospital bed, receiving treatment and care in the hospital, performing surgery, a hospital for the elderly, the concept of medicine and health care
Providing service and special needs with all competence, the concept of medicine and health care, a portrait of an Arab Gulf physical therapy practitioner examining the joints of a crippled Saudi patient wearing traditional clothing sitting in a wheelchair, gray background, sensitive content, sensitive use.
A Saudi Arabian Gulf doctor wearing a medical coat and sitting in her office, talking with a Saudi Gulf patient, following up the patient's medical record, providing medical consultations, describing the disease, the concept of medicine and health care
Working in the medical sector and health care, using a stethoscope and providing medical services, portrait of a Saudi Gulf Arab nurse wearing a medical coat looking at the camera with gestures of satisfaction and pleasure, black background, sensitive content, sensitive use
A Saudi Arabian Gulf doctor wearing a medical coat and sitting in her office, talking with a Saudi Gulf patient, following up the patient's medical record, providing medical consultations, describing the disease, the concept of medicine and health care
A Saudi Arabian Gulf doctor wearing a medical coat and a stethoscope, raising her thumb up to like something, working in the health sector, providing medical consultations and health services, the concept of medicine and health care
An old man, Arab, Gulf, Saudi, patient lying on a hospital bed, receiving treatment and care in the hospital, performing surgery, a hospital for the elderly, the concept of medicine and health care
Elegance and interest in appearance, the concept of medicine and health care, working in health centers and hospitals, providing medical assistance to patients, portrait of a veiled Gulf Arab Emirati female doctor wearing a white medical coat and an examination stethoscope and raising her index finger up, white background
The concept of health and medical care, periodic follow-up of home examinations, a close-up portrait of a Saudi Arabian Gulf nurse wearing gloves and a protective mask measuring the blood pressure of a patient with a health condition, working in the health sector, gray background
A Saudi Arabian Gulf dentist, wearing a medical coat and a medical mask, examines and diagnoses the patient's teeth, treats caries and installs fillings, provides health services, and oral and dental surgery.
Communication with patients via mobile phone, concept of medicine and health, close-up portrait of a smiling Saudi Arabian Gulf doctor wearing a medical coat speaking via mobile phone, black background, sensitive use, sensitive content
An old man, Arab, Gulf, Saudi, patient lying on a hospital bed, receiving treatment and care in the hospital, performing surgery, a hospital for the elderly, the concept of medicine and health care