Ключевые слова: aid, anatomical model, attack, beat, cardiac, cardio, cardiogram, cardiologist, cardiology, cardiovascular, care, clinic, diagnosis, disease, doctor, ecg, ekg, electrocardiogram, emergency, frequency, graphic, health, healthcare, healthy, heart, heart attack, heartache, heartbeat, hospital, ill, illness, infarct, infarction, insurance, ischemic, line, medic, medical, medicine, myocardium, patient, pulse, rhythm, science, tachycardia, treatment,