title: The new and ever changing PhRMA guidelines are impeding productive relationship.
authors: Bruce D
authors: BD
authors: Cheson
mesh_terms: D003256:Community Participation; D003226:Congresses as Topic; D004345:Drug Industry / Q000592:standards*; D017408:Guidelines as Topic; D006801:Humans; D008119:Lobbying; D040541:Marketing / Q000941:ethics / Q000592:standards*; D008495:Medical Oncology; D012955:Societies, Medical; D014481:United States