title: His bundle ectopic beats. His bundle electrocardiographic study.
mesh_terms: D000284:Administration, Oral; D001285:Atropine / Q000008:administration & dosage; D001919:Bradycardia / Q000209:etiology; D005117:Cardiac Complexes, Premature / Q000150:complications / Q000175:diagnosis*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006333:Heart Failure / Q000175:diagnosis; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D011413:Propantheline / Q000008:administration & dosage; D013431:Sulfates / Q000008:administration & dosage
chemical_list: D013431:Sulfates; D011413:Propantheline; D001285:Atropine