Ключевые слова: background, beat, cardiac, cardiologist, cardiology, care, clinic, closeup, diagnose, disease, doctor, emergency, equipment, expertise, health, healthcare, hear, heart, heartbeat, hospital, illness, instrument, listen, lung, measurement, medical, medicine, pharmacist, pharmacy, physician, prescription, profession, pulse, record, red, report, research, rx, stethoscope, symbol, table, test, tool, treatment,