title: [From textbook to Internet].
authors.affiliation: Medicinsk gastroenterologisk afsnit, H:S Hvidovre Hospital, Gastroenheden.
authors.forename: P
authors.initials: P
authors.lastname: Matzen
mesh_terms: D019992:Databases as Topic; D019317:Evidence-Based Medicine; D049673:History, 20th Century; D007255:Information Services; D020407:Internet; D008490:Medical Informatics