[1] Boston Univ, Sch Publ Hlth, Dept Hlth Law Policy & Management, 715 Albany St, Boston, MA 02118 USA
[2] Boston Med Ctr, Womens Hlth Unit, Sect Gen Internal Med, Evans Dept Med, Boston, MA USA
[3] Boston Univ, Sch Med, Boston, MA 02118 USA
[4] Univ Massachusetts, Chan Med Sch, Worcester, MA 01605 USA
[5] Dartmouth Coll, Geisel Sch Med, Dartmouth Inst Hlth Policy & Clin Practice, 1 Med Ctr Dr, Lebanon, NH 03756 USA
[6] Dartmouth Coll, Geisel Sch Med, Dartmouth Canc Ctr, 1 Med Ctr Dr, Lebanon, NH 03756 USA