Ключевые слова: background, beat, cardio, cardiogram, cardiologist, cardiology, care, closeup, concept, consultation, diagnosis, diagnostic, diagram, disease, doctor, ecg, electrocardiogram, exam, examination, forums, health, healthcare, heart, heartbeat, hospital, illness, listen, measuring, medical, medicine, paper, pill, pulse, rhythm, sheet, space, stethoscope, text,