title: FDA improves safety of human cells and tissues.
mesh_terms: D003140:Communicable Disease Control / Q000331:legislation & jurisprudence / Q000379:methods*; D006801:Humans; D014019:Tissue Donors / Q000331:legislation & jurisprudence; D016378:Tissue Transplantation / Q000331:legislation & jurisprudence / Q000592:standards*; D014481:United States; D014486:United States Food and Drug Administration