title: Initiation of atrial fibrillation by spontaneous ventricular premature beats in concealed Wolff-Parkinson-White syndrome.
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology*; D004562:Electrocardiography; D005260:Female; D005942:Gluconates / Q000627:therapeutic use; D006801:Humans; D011802:Quinidine / Q000031:analogs & derivatives / Q000627:therapeutic use; D014693:Ventricular Fibrillation / Q000150:complications* / Q000188:drug therapy; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications*
chemical_list: D005942:Gluconates; D011802:Quinidine; C016713:quinidine gluconate