Value of cardioversion in chronic atrial fibrillation.
D000328:Adult; D001281:Atrial Fibrillation / Q000628:therapy*; D002908:Chronic Disease / Q000628:therapy; D004554:Electric Countershock; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006331:Heart Diseases / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged