The main building of the National Institutes of Health is seen in Bethesda, Md., in this Aug. 17, 2009 file photo. . (AP Photo/J. Scott Applewhite, File) **FILE**
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The main building of the National Institutes of Health is seen in Bethesda, Md., in this Aug. 17, 2009 file photo. . (AP Photo/J. Scott Applewhite, File) **FILE**
