Ключевые слова: abstract, assessment, background, beat, cardiac, cardiogram, cardiograph, cardiology, cardiovascular disease, care, checkup, clinic, concepts, desk, diagnose, diagnosis, diagnostic, doctor, ecg, ekg, electrocardiogram, electronic, examination, graph, health, heart, heart disease, heartbeat, hospital, life, medical, medicine, monitor, normal, patient, program, pulse, rate, results, rx, stethoscope, stress, study, tablet computer, technical, technology, test, treatment,