Ключевые слова: black, cardiac, cardio, cardiology, check, checkup, clean, clinical, cure, device, diagnosis, diagnostic, disease, doctor, equipment, frequency, health, health care, healthcare, healthy, hear, heart, heartbeat, hospital, illness, instrument, measurement, medical, medicine, metal, nurse, pressure, pulse, rate, render, rubber, sick, sound, stethescope, stethoscope, stetoscope, surgeon, test, treatment, wellness, white,