[1] Univ Calif San Francisco, Div Geriatr, San Francisco, CA USA
[2] Brown Univ, Sch Publ Hlth, Dept Hlth Serv Policy & Practice, Providence, RI 02912 USA
[3] Univ Calif San Francisco, Dept Neurol, San Francisco, CA 94143 USA
[4] Univ Calif San Francisco, Dept Psychiat, San Francisco, CA 94143 USA
[5] Univ Calif San Francisco, Dept Epidemiol & Biostat, San Francisco, CA 94143 USA
[6] Icahn Sch Med Mt Sinai, Geriatr & Palliat Med, New York, NY 10029 USA