[1] San Francisco VA Med Ctr, San Francisco, CA 94121 USA
[2] Univ Calif San Francisco, Dept Psychiat & Behav Sci, San Francisco, CA 94115 USA
[3] Northern Calif Inst Res & Educ, San Francisco, CA 94121 USA
[4] Univ Calif San Francisco, Dept Neurol, San Francisco, CA 94115 USA
[5] Univ Calif San Francisco, Osher Ctr Integrat Hlth, San Francisco, CA USA
[6] Univ Calif San Francisco, Dept Med, San Francisco, CA USA
[7] Univ Calif San Francisco, Dept Family & Community Med, San Francisco, CA USA
[8] Univ Calif San Francisco, San Francisco VA Hlth Care Syst, 116-P 4150 Clement St, San Francisco, CA 94121 USA