Food and Drug Administration (USA) ; US Food and Drug Administration ; USA. Food and Drug Administration. Chief ; USA. Commissioner of Food and Drugs ; Commissioner of Food and Drugs (USA) ; USA. Federal Security Agency. Food and Drug Administration ; USA. Department of Health, Education, and Welfare. Food and Drug Administration ; USA. Department of Agriculture. Food and Drug Administration ; USA. Department of Health and Human Services. Food and Drug Administration ; USA. Public Health Service. Food and Drug Administration