Ключевые слова: aid, background, beat, blood, cardiac, cardiologist, cardiology, care, clinic, clinical, closeup, device, diagnosis, diagnostic, digital, disease, doctor, emergency, equipment, examination, finger, grey, health, healthy, heart, hospital, ill, illness, instrument, items, kit, measure, medical, medicine, modern, monitor, nobody, objects, pressure, pulse, service, set, sick, sickness, stethoscope, surgery, table, therapy, tool, treatment,