1
by Helfand, Mark
Published 2009
Oregon Health & Science University

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

4
by Helfand, Mark
Published 2007
Oregon Health & Science University

6
by Helfand, Mark
Published 2007
Oregon Health & Science University

7
by Helfand, Mark
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

8
by Carson, Susan, Peterson, Kim, Humphrey, Linda L., Helfand, Mark
Published 2013
Department of Veterans Affairs, Health Services Research & Development Service

9
by Peterson, Kim, Helfand, Mark, Humphrey, Linda L., Christensen, Vivian A.
Published 2013
Department of Veterans Affairs, Health Services Research And Development Service

10
by Helfand, Mark, Peterson, Kim, Carson, Susan, Humphrey, Linda L.
Published 2013
Department of Veterans Affairs, Health Services Research & Development Service

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