title: Information from drug companies and opinion leaders.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Liberati
authors.forename: Nicola
authors.initials: N
authors.lastname: Magrini
mesh_terms: D004345:Drug Industry; D004346:Drug Information Services / Q000592:standards*; D005060:Europe; D006297:Health Services Accessibility; D010506:Periodicals as Topic / Q000592:standards*