1
by Shipman, Scott, Helfand, Mark, Nygren, Peggy, Bougatsos, Christina
Published 2006
Agency for Healthcare Research and Quality (US)

2
by Nelson, Heidi D.
Published 2001
Agency for Healthcare Research and Quality (US)

3
by Smith, M. E. Beth
Published 2011
Oregon Health & Science University

4
by Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)

5
by Humphrey, Linda L., Chan, Benjamin, Detlefsen, Stephanie, Helfand, Mark
Published 2002
Agency for Healthcare Research and Quality (US)

8
by Nelson, Heidi D., Helfand, Mark
Published 2002
Agency for Healthcare Research and Quality (US)

9
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Agency for Healthcare Research and Quality (US)

10
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

11
by Helfand, Mark
Published 2009
Oregon Health & Science University

12
by Helfand, Mark
Published 2007
Oregon Health & Science University

13
by Helfand, Mark
Published 2009
Oregon Health & Science University

14
by Guise, Jeanne-Marie, Mahon, Susan, Aickin, Mikel, Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)

15
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

16
by Helfand, Mark, Mahon, Susan, Eden, Karen B.
Published 2001
Agency for Healthcare Research and Quality (US)

17
by Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality (US)

18
by Chandler, Chris
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

19
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

20
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center