Ключевые слова: backdrop, blue, cardiac, cardiologist, care, check, checkup, closeup, composition, data, diagnose, diagnosis, disease, doctor, emergency, equipment, exam, health, hear, heart, heartbeat, hospital, isolated, lifestyle, listen, lung, medical, medicine, metal, nobody, nurse, paramedic, physician, prevention, protection, question, research, science, sounds, sparse, stethoscope, studio, test, visit, white,