title: The William Nelson ECG quiz.
authors: William
authors: W
authors: Nelson
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000175:diagnosis*; D017180:Tachycardia, Ventricular / Q000175:diagnosis*