Ключевые слова: auscultation, blue, cardiac, cardiologist, cardiology, care, checkup, clinical, concept, currency, diagnose, diagnosis, diagnostic, doctor, equipment, exam, examination, examine, fitness, health, healthcare, hear, heart, heartbeat, hospital, illness, instrument, life, listen, male, man, medical, medicine, men, physician, professional, protection, pulse, research, respiratory system, safety, science, scientific, sickness, stethoscope, stress, technology, test, tool,