[1] VA Greater Los Angeles Healthcare Syst, VA HSR & D Ctr Study Healthcare Innovat Implement, Sepulveda, CA 91343 USA
[2] David Geffen UCLA Sch Med, Div Gen Internal Med & Hlth Serv Res, Los Angeles, CA USA
[3] RAND Hlth, Santa Monica, CA USA
[4] VA Greater Los Angeles Healthcare Syst, Ctr Implementat Practice & Res Support, Sepulveda, CA 91343 USA
[5] Vet Hlth Adm, Off Patient Care Serv, Washington, DC USA
[6] Vet Hlth Adm, Off Primary Care Clin Operat, Washington, DC USA
[7] Univ Calif Los Angeles, Sch Publ Hlth, Dept Hlth Policy & Management, Los Angeles, CA 90024 USA