title: Authors' response.
authors.affiliation: Cardiology Department, Hospital Universitario de Getafe, Ctra de Toledo, km 12.5, 28905 Getafe, Madrid, Spain.
authors.forename: Rocio
authors.initials: R
authors.lastname: Hinojar
authors.forename: Agustin
authors.initials: A
authors.lastname: Pastor
authors.forename: Francisco G
authors.initials: FG
authors.lastname: Cosio
mesh_terms: D002037:Bundle-Branch Block / Q000145:classification* / Q000503:physiopathology*; D004562:Electrocardiography / Q000379:methods*; D006325:Heart Atria / Q000503:physiopathology*; D006329:Heart Conduction System / Q000002:abnormalities*; D006801:Humans; D009626:Terminology as Topic