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by Humphrey, Linda L., Chan, Benjamin, Detlefsen, Stephanie, Helfand, Mark
Published 2002
Published 2002
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)
|
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by Guise, Jeanne-Marie, Mahon, Susan, Aickin, Mikel, Helfand, Mark
Published 2001
Published 2001
Agency for Healthcare Research and Quality (US)
|
|
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Published 2006
Agency for Healthcare Research and Quality (US)
|
|
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Published 2004
Agency for Healthcare Research and Quality
|
|
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Published 2006
Oregon Health & Science University
|
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by Shipman, Scott, Helfand, Mark, Nygren, Peggy, Bougatsos, Christina
Published 2006
Published 2006
Agency for Healthcare Research and Quality (US)