title: Pioneer implant defibrillator continues in clinical use.
mesh_terms: D003645:Death, Sudden; D004554:Electric Countershock / Q000295:instrumentation*; D004567:Electrodes, Implanted; D006352:Heart Ventricles; D006801:Humans; D013610:Tachycardia / Q000628:therapy*; D014693:Ventricular Fibrillation / Q000628:therapy*