title: William Nelson ECG quiz.
mesh_terms: D058606:Accessory Atrioventricular Bundle / Q000175:diagnosis* / Q000503:physiopathology; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D011237:Predictive Value of Tests; D013997:Time Factors