Automatic defibrillators.
D004554:Electric Countershock / Q000295:instrumentation*; D004630:Emergencies; D006323:Heart Arrest / Q000401:mortality / Q000628:therapy*; D006801:Humans; D008297:Male; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000175:diagnosis / Q000628:therapy