Ключевые слова: aged, attentive, blurred background, cap, clinic, commitment, concentration, diligent, doctor, elderly, experienced, expertise, facial expression, focus, glasses, healthcare, healthcare worker, hospital, intense, mature, medical, medical equipment, medical staff, medicine, operating room, operation, portrait, practice, preparedness, professional, professionalism, readiness, scrubs, senior, sterile environment, surgeon, surgery, wisdom, work,