[1] Ctr Innovat Implementat, VA Palo Alto Hlth Care Syst, Menlo Pk, CA 94304 USA
[2] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[3] Case Western Reserve Univ, Cleveland, OH USA
[4] Emory Univ, Sch Med, Atlanta, GA USA
[5] Wilmington VA Med Ctr, Employee Occupat Hlth, Wilmington, DE USA
[6] Occupat Hlth Serv, VA Palo Alto Hlth Care Syst, Palo Alto, CA USA
[7] VA Greater Los Angeles Healthcare Syst, VA Greater Angeles Healthcare Syst, Los Angeles, CA USA
[8] Univ Calif Los Angeles, Fielding Sch Publ Hlth, Dept Hlth Policy & Management, Los Angeles, CA USA
[9] Geffen Sch Med, Dept Med, UCLA, Los Angeles, CA USA