title: Non-synchronous elective cardioversion of chronic atrial arrhythmias.
mesh_terms: D000293:Adolescent; D000328:Adult; D001281:Atrial Fibrillation / Q000150:complications / Q000517:prevention & control / Q000628:therapy*; D006332:Cardiomegaly / Q000150:complications; D004554:Electric Countershock; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use; D012008:Recurrence
chemical_list: D011433:Propranolol