title: T wave alternans detected in defibrillator electrograms.
authors.forename: John E
authors.initials: JE
authors.lastname: Madias
mesh_terms: D017147:Defibrillators, Implantable; D004562:Electrocardiography; D006801:Humans; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy