Two-thirds of Bush-approved stem-cell lines too immature for research, Thompson says; NIH access to some assured.
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D000046:Academic Medical Centers; D002460:Cell Line; D006801:Humans; D009316:National Institutes of Health (U.S.); D012106:Research / Q000331:legislation & jurisprudence* / Q000592:standards*; D013234:Stem Cells; D014481:United States