FDA: efficiency drive stumbles over the issue of drug efficacy.
D003276:Contraceptives, Oral; D004295:Dihydroxyphenylalanine; D004345:Drug Industry; D007880:Legislation, Drug; D014481:United States; D014486:United States Food and Drug Administration
D003276:Contraceptives, Oral; D004295:Dihydroxyphenylalanine