Bush turns amber on stem cell research.
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D002460:Cell Line; D006801:Humans; D007857:Leadership; D009316:National Institutes of Health (U.S.) / Q000191:economics / Q000331:legislation & jurisprudence*; D011057:Politics; D012109:Research Support as Topic / Q000331:legislation & jurisprudence* / Q000458:organization & administration; D013234:Stem Cells / Q000166:cytology; D014481:United States