Ключевые слова: abstract, analysis, analyze, background, beat, blue, cardiac, cardio, cardiogram, cardiograph, cardiology, care, curve, diagnosis, display, ecg, ekg, electrocardiogram, electrocardiograph, emergency, equipment, frequency, graph, graphic, grid, health, healthcare, healthy, heart, heartbeat, hospital, illustration, life, line, medical, medicine, monitor, monitoring, patient, pulse, rate, rhythm, screen, signal, stress, technology, template, test, wave,