机构:
Harvard Univ, Dept Hlth Care Policy, Sch Med, Boston, MA 02115 USA
Brigham & Womens Hosp, Div Gen Med & Primary Care, Boston, MA 02115 USA
Harvard Univ, Dept Hlth Policy & Management, Sch Publ Hlth, Boston, MA 02115 USAHarvard Univ, Dept Hlth Care Policy, Sch Med, Boston, MA 02115 USA