[1] Stanford Univ, Palo Alto Vet Affairs Healthcare Syst, Stanford, CA 94305 USA
[2] Stanford Univ, Div Gen Med Disciplines, Stanford, CA 94305 USA
[3] Univ Michigan, Dept Vet Affairs, Ctr Clin Management Res, Ann Arbor, MI 48109 USA
[4] Inst Healthcare Policy & Innovat, Dept Internal Med, Ann Arbor, MI USA
[5] Palo Alto Vet Affairs Healthcare Syst, Ctr Innovat Implementat, 795 Willow Rd 152-MPD, Menlo Pk, CA 94025 USA