Ключевые слова: analysis, background, banner, cardio, cardiogram, cardiologist, cardiology, care, chart, clinic, close, concept, diagnostics, disease, ecg, electrocardiogram, electrocardiograph, equipment, frequency, graph, graphics, health, healthy, heart, heart attack, heartbeat, holiday, hospital, interval, life, medical, medicine, myocardium, nobody, normal, paper, patient, pattern, prevention, pulse, record, rhythm, science, september, sine, technology, test, wave, world heart day,