title: Letter from the Commissioner's office at the US FDA.
authors.forename: John A
authors.initials: JA
authors.lastname: Vernon
mesh_terms: D017277:Drug Approval / Q000191:economics / Q000331:legislation & jurisprudence; D033161:Government Regulation; D007880:Legislation, Drug; D014481:United States; D014486:United States Food and Drug Administration