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AHRQ comparative effectiveness research : United States.
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2012
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1
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AHRQ Pub. ; no. 03-0009 : Sommers, J. P.
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2003
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1
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AHRQ Pub. ; No. 05-0022 : Fleishman, John A.
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2005
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1
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AHRQ publication ; no. 00-0028. : Machlin, Steven R.
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2000
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1
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AHRQ publication ; no. 01-0018 : United States.
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2001
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1
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