Ключевые слова: analysis, books, breath, breathe, cardiac, caregiver, checkup, clinic, clinical, cure, device, diagnosis, doctor, exam, examine, exhale, fitness, heal, health, healthcare, hear, heart, heartbeat, hospital, inhale, library, lung, medical, medicine, nurse, nursing, patient, physical, physician, pulse, reference, sound, stethascope, stethoscope, surgeon, therapy, treat, wellbeing,