title: Investigating and prognosticating.
authors: S B
authors: SB
authors: Gupta
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D016757:Death, Sudden, Cardiac / Q000517:prevention & control; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D006801:Humans; D010138:Pacemaker, Artificial