Ключевые слова: abstract, aid, analyze, art, background, beat, cardiogram, cardiology, care, chart, checked, clinic, design, diagnosis, disease, display, ecg, editable, electrocardiogram, emergency, frequency, graph, healthcare, heart, heartbeat, hospital, illness, illustration, life, line, medical, medicine, monitoring, patient, pressure, pulse, rate, rescue, science, sign, sketch, sketchy, symbol, test, urgency, vibrant, wave, waveform,