1. Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California2Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California3Veterans Affairs/Robert Wood Johnson Clinical Scholars Program, UCLA, Los Angeles, Cali
2. Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California2Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California5Southern California Evidence-Based Practice Center, RAND Corporation, Santa Monica
3. Southern California Evidence-Based Practice Center, RAND Corporation, Santa Monica6Akasha Center for Integrative Medicine, Santa Monica, California
4. Southern California Evidence-Based Practice Center, RAND Corporation, Santa Monica
5. Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California4Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, California
6. Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California
7. Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California5Southern California Evidence-Based Practice Center, RAND Corporation, Santa Monica