[1] Univ Calif Los Angeles, Dept Hlth Policy & Management, Fielding Sch Publ Hlth, Los Angeles, CA 90095 USA
[2] VA Greater Los Angeles Hlth Care Syst, HSR & D Ctr Study Healthcare Innovat Implementat, Los Angeles, CA USA
[3] Univ Calif Los Angeles, David Geffen Sch Med, Dept Psychiat & Biobehav Sci, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Dept Med, Los Angeles, CA 90095 USA
[5] RAND Hlth, Santa Monica, CA USA