title: Mechanisms of spontaneous alternation between reciprocating tachycardia and atrial flutter-fibrillation in the Wolff-Parkinson-White syndrome.
mesh_terms: D000328:Adult; D001281:Atrial Fibrillation / Q000503:physiopathology*; D001282:Atrial Flutter / Q000503:physiopathology*; D002036:Bundle of His / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011433:Propranolol / Q000627:therapeutic use; D011802:Quinidine / Q000627:therapeutic use; D013610:Tachycardia / Q000503:physiopathology*; D014927:Wolff-Parkinson-White Syndrome / Q000188:drug therapy / Q000503:physiopathology*
chemical_list: D011433:Propranolol; D011802:Quinidine