Ключевые слова: abstract, analysis, analyze, background, blood, cardiac, cardio, cardiograph, cardiology, care, diagnosis, diagnostics, display, doll, electrocardiogram, electrocardiograph, equipment, graph, graphic, grid, hand, health, healthcare, healthy, heart, heartbeat, life, line, medical, medicine, monitor, monitoring, paper cut, pills, pulse, rhythm, signal, stress, technology, test, treatment, wave,