[1] Boston Univ, Sch Med, Dept Med, Sect Gen Internal Med, 801 Massachusetts Ave, Boston, MA 02118 USA
[2] Boston Med Ctr, 801 Massachusetts Ave, Boston, MA 02118 USA
[3] Univ Calif San Francisco, Sch Nursing, San Francisco, CA 94143 USA
[4] Univ Calif San Francisco, Dept Community Hlth Syst, San Francisco, CA 94143 USA
[5] Boston Univ, Sch Med, Dept Pediat, Div Gen Pediat, Boston, MA 02118 USA
[6] San Francisco Dept Publ Hlth, 101 Grove St, San Francisco, CA 94102 USA
[7] Univ Calif San Francisco, Dept Med, 533 Parnassus Ave, San Francisco, CA 94143 USA
[8] Boston Univ, Sch Publ Hlth, Dept Hlth Law Policy & Management, Boston, MA 02118 USA
[9] Div Gen, Internal Med, 801 Massachusetts Ave,Second Floor, Boston, MA 02118 USA