title: Letter: 2 papers on BBB during tachycardia.
mesh_terms: D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000209:etiology*; D004562:Electrocardiography; D006801:Humans; D013610:Tachycardia / Q000150:complications* / Q000503:physiopathology