title: Pharmaceutical marketing has real and proven value. Characteristics of materials distributed by drug companies: four points of view.
authors.forename: J F
authors.initials: JF
authors.lastname: Beary
mesh_terms: D016265:Conflict of Interest; D004345:Drug Industry / Q000592:standards / Q000639:trends; D033161:Government Regulation; D006801:Humans; D033181:Information Dissemination; D007400:Interprofessional Relations; D014481:United States; D014486:United States Food and Drug Administration