FDA could OK costly blood standards. An expert says that like chicken soup, removal of white cells from blood supply can't hurt.
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D001771:Blood Banks / Q000191:economics* / Q000331:legislation & jurisprudence; D001781:Blood Component Removal / Q000191:economics*; D003365:Costs and Cost Analysis; D006801:Humans; D007962:Leukocytes; D012011:Red Cross; D014481:United States; D014486:United States Food and Drug Administration