Ключевые слова: analysis, background, beat, blood, blue, cardiogram, cardiology, care, computer, concept, curve, diagram, ecg, ekg, electrocardiogram, electrocardiograph, glowing, graph, graphic, health, healthcare, healthy, heart, heartbeat, horizontal, hospital, human, illustration, life, line, medical, medicine, monitor, monitoring, normal, oscillate, pattern, pressure, pulsating, pulse, rate, rhythm, screen, stress, technology, test, trace, wave,