Ключевые слова: analysis, beat, cardiac, cardio, cardiogram, cardiograph, cardiology, care, clinic, curve, diagnosis, ecg, ekg, electrocardiogram, electrocardiograph, emergency room, graph, graphic, health, healthcare, healthy, heart, heartbeat, hospital, life, line, medical, medicine, monitor, operating theater, pulse, rhythm, surgery, surgical, technology, test, wave,