Ключевые слова: analysis, beat, blue, cardiac, cardio, cardiogram, cardiologist, cardiology, care, clinic, closeup, death, detail, ecg, ekg, electrocardiogram, electrocardiograph, electrodiagnosis, frequency, graph, graphic, health, healthcare, heart, heart beat, impulse, medical, medicine, outpatient, paper, patient, pill, pills, printout, science, stethoscope, test,