title: Reverse rate related bundle branch block.
mesh_terms: D001919:Bradycardia / Q000150:complications*; D002037:Bundle-Branch Block / Q000188:drug therapy / Q000209:etiology*; D004071:Digitalis Glycosides / Q000627:therapeutic use; D004077:Digoxin / Q000627:therapeutic use; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008875:Middle Aged
chemical_list: D004071:Digitalis Glycosides; D004077:Digoxin