[1] David Geffen School of Medicine at UCLA,Department of Surgery
[2] Greater Los Angeles Healthcare System,Veterans Health Administration
[3] University of California,National Clinician Scholars Program
[4] Los Angeles,Department of Surgery
[5] RAND Corporation,National Center for Patient Safety
[6] U.S. Department of Veterans Affairs,undefined
[7] VA Pittsburgh Healthcare System,undefined
[8] Veterans Health Administration,undefined
[9] University of Michigan,undefined
[10] Olive View-UCLA Medical Center,undefined