title: Expanded access rules pose quandary for drug developers.
authors.forename: George S
authors.initials: GS
authors.lastname: Mack
mesh_terms: D057176:Compassionate Use Trials / Q000331:legislation & jurisprudence*; D004345:Drug Industry / Q000331:legislation & jurisprudence*; D015507:Drugs, Investigational; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence*
chemical_list: D015507:Drugs, Investigational