title: The William Nelson ECG Quiz.
mesh_terms: D000293:Adolescent; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000175:diagnosis; D004562:Electrocardiography; D005260:Female; D006801:Humans; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications / Q000175:diagnosis*