[1] UPMC Internal Med Residency Program, Pittsburgh, PA USA
[2] Univ Calif San Francisco, Div Geriatr, San Francisco, CA 94143 USA
[3] Univ Pittsburgh, Sect Palliat Care & Med Eth, Div Gen Internal Med, Pittsburgh, PA USA
[4] Johns Hopkins Univ, Sch Med, Div Geriatr Med & Gerontol, Baltimore, MD USA
[5] Univ Calif San Francisco, Internal Med Residency Program, San Francisco, CA 94143 USA
[6] Jewish Home San Francisco Ctr Res Aging, San Francisco, CA USA