title: State challenges to painkiller could threaten FDA authority.
authors.forename: Monica
authors.initials: M
authors.lastname: Heger
mesh_terms: D006076:Government; D006801:Humans; D010146:Pain / Q000188:drug therapy*; D059408:Pain Management / Q000009:adverse effects*; D014481:United States; D014486:United States Food and Drug Administration / Q000941:ethics / Q000331:legislation & jurisprudence*