title: [Use of verapamil in the treatment of ventricular extrasystole in chronic Chagas' heart disease].
mesh_terms: D009202:Cardiomyopathies / Q000209:etiology*; D014355:Chagas Disease / Q000188:drug therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D003327:Coronary Disease / Q000188:drug therapy*; D004341:Drug Evaluation; D005260:Female; D006352:Heart Ventricles / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D014700:Verapamil / Q000627:therapeutic use*
chemical_list: D014700:Verapamil
vernacular_title: Emprego do verapamil no tratamento de extrassistolia ventricular em cardiopatas chagásicos crônicos.