Beta-receptor blockade in maintenance of sinus rhythm obtained by electroconversion.
D001146:Arrhythmia, Sinus / Q000188:drug therapy / Q000628:therapy*; D001281:Atrial Fibrillation / Q000628:therapy*; D004554:Electric Countershock; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011802:Quinidine / Q000627:therapeutic use; D013565:Sympatholytics / Q000627:therapeutic use*
D013565:Sympatholytics; D011802:Quinidine