Ключевые слова: analysis, background, beat, cardiac, cardiogram, cardiology, care, chart, diagnosis, disease, doctor, ecg, ecg graph, ecg line, ekg, ekg heart, ekg line, electrocardiogram, electrocardiograph, equipment, frequency, graph, graphic, health, health care, healthcare, healthy, heart, heartbeat, life, line, medical, medical assistance, medical graph, medical sign, medical symbols, medicine, monitor, monitoring, normal ecg, paper, pattern, pressure, pulse, rate, rhythm, test, trace, wave,