Ключевые слова: background, black, cardiac, cardio, cardiologist, cardiology, cardiovascular, care, checkup, clinic, clipboard, closeup, device, diagnosis, diagnostic, doctor, emergency, equipment, examination, focus, hands, health, healthcare, heart, heartbeat, hospital, illness, indoors, light, listen, male, man, measurement, medical, medicine, office, paperwork, pen, person, pulse, selective, sick, stethoscope, table, therapy, tool, treatment, white, working, writing,