Ключевые слова: app, background, beat, black, cardiac, cardio, cardiogram, cardiograph, cardiologist, cardiology, care, chart, concept, curve, design, diagnosis, ecg, ekg, electrocardiogram, electrocardiograph, electrocardiography, flat, graph, graphic, health, healthy, heart, heartbeat, hospital, icon, illustration, isolated, life, line, medical, medicine, monitor, note, outline, paper, post, pulse, rhythm, screen, symbol, wave, waveform, white,