US Department of Agriculture perspective.
USDA-CSRS, Washington, DC 20250-2200.
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Smitherman
D000383:Agriculture / Q000379:methods*; D000818:Animals; D005398:Fisheries; D005399:Fishes; D007880:Legislation, Drug; D014481:United States; D014486:United States Food and Drug Administration / Q000458:organization & administration*