[1] VA Palo Alto Hlth Care Syst, Ctr Innovat Implementat, 795 Willow Rd 152-MPD, Menlo Pk, CA 94025 USA
[2] Abt Associates Inc, Rockville, MD USA
[3] Univ Calif San Diego, Dept Med, Div Geriatr Gerontol & Palliat Care, San Diego, CA 92103 USA
[4] Vet Affairs San Diego Healthcare Syst, San Diego, CA USA
[5] Vet Hlth Adm, Natl Ctr Homelessness Vet, Menlo Pk, CA USA