1
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Agency for Healthcare Research and Quality (US)

2
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

3
by Chou, Roger
Published 2007
Oregon Health & Science University

6
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Agency for Healthcare Research and Quality (US)

7
by Chou, Roger
Published 2007
Oregon Health & Science University

8
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

11
by Chandler, Chris
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center