title: [Web pages citation and error 404].
authors.forename: Francisco
authors.initials: F
authors.lastname: Martínez García
authors.forename: M Amelia
authors.initials: MA
authors.lastname: de la Llana Martín
authors.forename: M Angeles
authors.initials: MA
authors.lastname: Gil García
authors.forename: Pilar
authors.initials: P
authors.lastname: Barredo Sobrino
mesh_terms: D001634:Bibliographies as Topic; D006801:Humans; D016247:Information Storage and Retrieval / Q000592:standards; D020407:Internet / Q000592:standards*; D008490:Medical Informatics; D010506:Periodicals as Topic / Q000592:standards*; D011643:Publishing / Q000592:standards