Ключевые слова: background, cardiac, cardio, cardiology, care, check, clean, clinic, clinical, closeup, device, disease, doctor, equipment, exam, examination, health, healthcare, healthy, healthy lifestyle, hear, heart, help, hospital, illness, instrument, isolated, listening, measurement, medic, medical equipment, medical exam, medical instrument, metal, physician, pressure, professional, rubber, silver, single object, sound, steel, stethoscope, test, tool, white, work tool,