title: Challenging years in regulatory affairs.
authors.forename: C D
authors.initials: CD
authors.lastname: Van Houweling
mesh_terms: D049673:History, 20th Century; D007886:Legislation, Veterinary / Q000266:history; D012952:Societies / Q000266:history; D014481:United States; D014486:United States Food and Drug Administration / Q000266:history; D014730:Veterinary Medicine / Q000266:history