Lisa V Rubenstein, MD, MSPH, John W Williams, Jr, MD, MHS, Marjorie Danz, MD,and Paul Shekelle, MD, PhD. Statistician: Marika Suttorp, MS; Research Assistant: Breanne Johnsen, BA.
VA Greater Los Angeles, CA
UCLA, Los Angeles, CA
HSR&D Center of Excellence for the Study of Healthcare Provider Behavior, Los Angeles, CA
RAND Corporation, Santa Monica, CA
Durham VA Medical Center, Durham, NC
Duke University, Durham, NC
Duke Evidence-Based Practice Center, Durham, NC
Washington (DC): Department of Veterans Affairs; March 2009.