Ключевые слова: background, beat, black, blood, blue, cardiologist, cardiology, care, clinic, color, concept, consultation, copy, cure, desk, device, diagnosis, disease, doctor, examination, flat, health, heart, heartbeat, illness, lay, medic, medical, medicine, modern, nobody, notebook, object, patient, pressure, prevention, problem, pulse, rhythm, sickness, space, stethoscope, text, tool, top, treatment, view,