title: USDA ends BSE investigation; experts call for more safeguards.
authors.forename: Bridget M
authors.initials: BM
authors.lastname: Kuehn
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle; D003257:Consumer Product Safety; D016643:Encephalopathy, Bovine Spongiform / Q000453:epidemiology / Q000517:prevention & control*; D005506:Food Contamination / Q000517:prevention & control; D007391:International Cooperation; D012307:Risk Factors; D014481:United States; D016885:United States Department of Agriculture