1
by Helfand, Mark, Mahon, Susan, Eden, Karen B.
Published 2001
Agency for Healthcare Research and Quality (US)
Subjects: ...United States...

2
by Helfand, Mark, Mahon, Susan, Eden, Karen B.
Published 2001
Agency for Healthcare Research and Quality (US)
Subjects: ...United States...

3
by Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)
Subjects: ...United States / epidemiology...

4
by Helfand, Mark
Published 2001
Agency for Healthcare Research and Quality (US)
Subjects: ...United States / epidemiology...

5
by Helfand, Mark
Published 2009
Oregon Health & Science University
Subjects: ...United States...

6
by Helfand, Mark
Published 2009
Oregon Health & Science University
Subjects: ...United States...

7
by Chandler, Chris
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center
Subjects: ...United States...

8
by Chou, Roger
Published 2007
Oregon Health & Science University
Subjects: ...United States...

9
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center
Subjects: ...United States...

10
by Chou, Roger
Published 2007
Oregon Health & Science University
Subjects: ...United States...

11
by McDonagh, Marian S.
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center
Subjects: ...United States...

12
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center
Subjects: ...United States...

13
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center
Subjects: ...United States...