Ключевые слова: attack, background, beat, body, cardio, cardiogram, cardiology, care, chart, clinic, closeup, computer, concept, death, diagnosis, digital, ecg, ekg, electrical, electrocardiogram, equipment, frequency, graph, graphic, health, healthcare, heart, hospital, icu, instrument, machine, medical, medicine, monitor, monitoring, paper, people, printout, pulse, research, science, symbol, technology, temperature, test, therapy, thermometer, treatment, urgent, white,