1
by Helfand, Mark
Published 2001
Oregon Health & Science University, Evidence-Based Practice Center

2
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

3
by Helfand, Mark
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

4
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

5
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

6
by Chou, Roger
Published 2007
Oregon Health & Science University

8
by Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality (US)

10
by Helfand, Mark
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

11
by Kansagara, Devan
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

12
by Helfand, Mark
Published 2009
Agency for Healthcare Research and Quality

13
by Smith, M. E. Beth
Published 2011
Oregon Health & Science University

14
by Chou, Roger
Published 2007
Oregon Health & Science University

15
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

16
by Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality (US)

17
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

18
by Helfand, Mark
Published 2007
Oregon Health & Science University