title: Organic beef. Is it a safer choice?
mesh_terms: D000818:Animals; D002417:Cattle; D016643:Encephalopathy, Bovine Spongiform / Q000517:prevention & control / Q000635:transmission; D058870:Food, Organic / Q000009:adverse effects* / Q000592:standards; D008460:Meat / Q000009:adverse effects* / Q000592:standards; D014481:United States; D016885:United States Department of Agriculture / Q000592:standards