title: Electrocardiography and resynchronization therapy: is the QRS duration sufficient?
authors.forename: Arcadio García
authors.initials: AG
authors.lastname: Alberola
mesh_terms: D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006333:Heart Failure / Q000503:physiopathology* / Q000628:therapy*; D006801:Humans; D013997:Time Factors