Ключевые слова: background, blue, cardiac, cardiologist, cardiology, care, clean, closeup, device, diagnose, diagnosis, diagnostic, disease, emergency, equipment, exam, examination, health, healthcare, healthy, hear, heartbeat, hospital, illness, instrument, isolated, listen, measurement, medical, medicine, metal, phonendoscope, pulse, research, science, scientific, stethophonendoscope, stethoscope, sthethoscope, test, tool, treatment, wellbeing, wellness, white,