2
by Veazie, Stephanie, Vela, Kathryn, Helfand, Mark
Published 2020
Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Service

3
by Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)

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

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

7
by Anderson, Johanna, Young, Sarah, Helfand, Mark
Published 2021
U.S. Department of Veterans Affairs, Veterans Health Administration, Health Services Research & Development Office

8
by Helfand, Mark
Published 2007
Oregon Health & Science University

9
by Helfand, Mark
Published 2009
Oregon Health & Science University

10
by Chou, Roger
Published 2007
Oregon Health & Science University

11
by Nelson, Heidi D., Helfand, Mark
Published 2002
Agency for Healthcare Research and Quality (US)

12
by Nelson, Heidi D.
Published 2001
Agency for Healthcare Research and Quality (US)

13
by Helfand, Mark
Published 2007
Dept. of Veterans Affairs, Health Services Research & Development Service

14
by Shipman, Scott, Helfand, Mark, Nygren, Peggy, Bougatsos, Christina
Published 2006
Agency for Healthcare Research and Quality (US)

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

16
by Kansagara, Devan
Published 2008
Department of Veterans Affairs, Health Services Research & Development Service

17
by Humphrey, Linda L., Chan, Benjamin, Detlefsen, Stephanie, Helfand, Mark
Published 2002
Agency for Healthcare Research and Quality (US)

18
by Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality (US)

19
by Helfand, Mark, Christensen, Vivian A., Anderson, Johanna
Published 2016
Department of Veterans Affairs, Veterans Health Administration, Quality Enhancement Research Initiative, Health Services Research & Development Service

20
by Peterson, Kim, Helfand, Mark, Humphrey, Linda L., Christensen, Vivian A.
Published 2013
Department of Veterans Affairs, Health Services Research And Development Service