Ключевые слова: analysis, analyze, beat, blood, bright, cardio, cardiogram, cardiology, care, chart, checkup, clinic, diagnose, diagnosis, disease, ecg, ekg, electric, electrocardiogram, emergency, examination, frequency, health, health care, healthy, heart, heartbeat, hospital, hythm, illness, measurement, medical, medicine, object, paper, pattern, print, pulse, rate, red, syringe, treatment,