title: Quinidine before direct current countershock. A controlled study.
mesh_terms: D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology / Q000517:prevention & control*; D001281:Atrial Fibrillation / Q000628:therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D004071:Digitalis Glycosides / Q000008:administration & dosage; D004554:Electric Countershock / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011802:Quinidine / Q000097:blood / Q000627:therapeutic use*; D014693:Ventricular Fibrillation / Q000209:etiology
chemical_list: D003692:Delayed-Action Preparations; D004071:Digitalis Glycosides; D011802:Quinidine