title: Ventricular fibrillation following verapamil in the Wolff-Parkinson-White syndrome.
mesh_terms: D000293:Adolescent; D004562:Electrocardiography; D006801:Humans; D008297:Male; D014693:Ventricular Fibrillation / Q000139:chemically induced*; D014700:Verapamil / Q000009:adverse effects* / Q000627:therapeutic use; D014927:Wolff-Parkinson-White Syndrome / Q000188:drug therapy*
chemical_list: D014700:Verapamil