21
by Helfand, Mark
Published 2009
Oregon Health & Science University

22
by Helfand, Mark
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

23
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Agency for Healthcare Research and Quality (US)

24
by Kansagara, Devan
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

26
by Chou, Roger
Published 2007
Oregon Health & Science University

27
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

28
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

29
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

30
by Chandler, Chris
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

31
by Smith, M. E. Beth
Published 2011
Oregon Health & Science University

32
by Helfand, Mark
Published 2001
Oregon Health & Science University, Evidence-Based Practice Center

33
by Helfand, Mark
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

34
by Kansagara, Devan
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

35
by Helfand, Mark
Published 2009
Agency for Healthcare Research and Quality