[1] NYU Grossman Sch Med, New York, NY USA
[2] Boston Univ, Boston, MA USA
[3] Univ Massachusetts, Amherst, MA USA
[4] Massachusetts Gen Hosp, MGH Weight Ctr, Dept Med, Div Endocrinol,Metab Unit, 50 Staniford St,Suite 430, Boston, MA 02114 USA
[5] Harvard Med Sch, Boston, MA 02115 USA
[6] Massachusetts Gen Hosp, Dept Med, Div Endocrinol, Metab Unit, Boston, MA USA