[1] Vet Affairs Palo Alto Hlth Care Syst, Ctr Innovat Implementat Ci2i, Palo Alto, CA 94304 USA
[2] Stanford Univ, Sch Med, Dept Med, Div Primary Care & Populat Hlth, Stanford, CA 94305 USA
[3] Vet Affairs Greater Angeles Healthcare Syst, Ctr Study Healthcare Innovat Implementat & Policy, Los Angeles, CA USA
[4] Vet Emergency Management Evaluat Ctr, North Hills, CA USA
[5] UCLA, David Geffen Sch Med, Dept Med, Div Gen Internal Med & Hlth Serv Res, Los Angeles, CA 90095 USA