1
by Helfand, Mark
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

2
by Helfand, Mark
Published 2007
Dept. of Veterans Affairs, Health Services Research & Development Service

3
by Helfand, Mark
Published 2009
Agency for Healthcare Research and Quality

4
by Helfand, Mark
Published 2009
Oregon Health & Science University

5
by Helfand, Mark
Published 2007
Oregon Health & Science University

6
by Helfand, Mark
Published 2009
Oregon Health & Science University

7
by Helfand, Mark
Published 2001
Oregon Health & Science University, Evidence-Based Practice Center

8
by Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)

9
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

10
by Helfand, Mark
Published 2007
Dept. of Veterans Affairs, Health Services Research & Development Service

11
by Helfand, Mark
Published 2001
Oregon Health & Science University, Evidence-Based Practice Center

12
by Helfand, Mark
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

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

14
by Helfand, Mark
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

15
by Helfand, Mark
Published 2007
Oregon Health & Science University

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

17
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

18
by Helfand, Mark
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 Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)