closer look at ecg printout

accessories accessory analyse analysis analyze beat beating body cardio cardiogram cardiograph cardiological cardiology chart checkup close closeup detail diagnose diagnoses diagnosis draw ecg ekg electro electrocardiogram enlarge glass graph graphic hand handle heart heartbeat hold holding isolated isolation macro magnification magnify magnifying magnifyingglass medical medicine object paper part plot print result results search searching stripe striped test tests thumb tool up white zoom