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by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Published 2006
Oregon Health & Science University
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by Helfand, Mark
Published 2008
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service
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by Kansagara, Devan
Published 2008
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service
|
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by Helfand, Mark
Published 2007
Published 2007
Dept. of Veterans Affairs, Health Services Research & Development Service
|
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by Shipman, Scott, Helfand, Mark, Nygren, Peggy, Bougatsos, Christina
Published 2006
Published 2006
Agency for Healthcare Research and Quality (US)
|
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by Helfand, Mark
Published 2008
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service
|
|
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Published 2006
Agency for Healthcare Research and Quality (US)
|
|
by Guise, Jeanne-Marie, Mahon, Susan, Aickin, Mikel, Helfand, Mark
Published 2001
Published 2001
Agency for Healthcare Research and Quality (US)
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by Helfand, Mark, Mahon, Susan, Eden, Karen B.
Published 2001
Published 2001
Agency for Healthcare Research and Quality (US)