Ключевые слова: analysis, analyze, arrest, attack, backdrop, background, beat, black, body, cardiac, cardio, cardiogram, cardiology, care, chart, clinic, closeup, concept, detail, diagnosis, ecg, ekg, electrocardiogram, electrocardiograph, frequency, graph, graphic, health, healthcare, healthy, hospital, life, medical, medicine, nobody, paper, pattern, people, pink, press, printout, rhythm, science, test, trace, unfocused, violet,