Ключевые слова: cardiac, cardiology, check, checkup, clean, clinical, closeup, cure, device, diagnosis, diagnostic, disease, equipment, examination, examine, frequency, health, healthy, hear, heart, heartbeat, hospital, illness, instrument, isolated, measurement, medic, medical, medicine, metal, pressure, pulse, rate, rubber, sick, sound, stethoscope, surgeon, test, text, treatment, wellness, white,