Ключевые слова: analyze, beats, cardiac, cardio, cardiogram, cardiologist, cardiology, care, chart, check, clinic, concept, data, diagnose, diagnosis, diagnostic, disease, doctor, ekg, electrocardiogram, equipment, exam, examination, examine, frequency, graph, health, healthcare, heart, heartbeat, hospital, line, medical, medicine, patient, protection, pulse, report, research, stethoscope, test, treatment,