Ключевые слова: background, cardiology, care, clean, clinical, closeup, concept, device, diagnosis, diagnostic, disease, doctor, education, emergency, equipment, exam, examination, expertise, health, healthcare, hear, heart, heartbeat, hospital, illness, instrument, learning, listen, literature, lung, measurement, medic, medical, medicine, network, object, paper, physician, profession, professional, research, science, scientific, stethoscope, table, technology, test, tool, treatment,