Ключевые слова: analysis, background, beat, cardiac, cardiogram, cardiology, care, chart, clinic, closeup, concept, copy, data, diagnosis, diagnostic, disease, electrocardiogram, examination, graph, health, healthcare, healthy, heart, heartbeat, help, hospital, illness, infarction, insurance, life, medical, medicine, paper, protection, pulse, red, research, science, sheet, sickness, small, space, table, test, text, treatment, white,