Ключевые слова: analyse, analysis, analyze, analyzing, background, backgrounds, cardiac, cardio, cardiogram, cardiograph, cardiological, cardiology, changing, chart, curve, diagnose, diagnosis, diagram, disease, ecg, eeg, ekg, electrocardiogram, electrocardiograph, electrocardiography, graph, health, healthy, heart, heartbeat, hospital, infarct, line, macro, medical, medicine, paper, print, printout, progress, pulsating, pulse, research, results, rhythm, scale, scrutiny, stress, tachycardia, test,