[1] Columbia Univ, Coll Phys & Surg, Dept Pediat, New York, NY 10032 USA
[2] Columbia Univ, Coll Phys & Surg, Dept Med, Div Mol Genet,Naomi Berrie Diabet Ctr, New York, NY 10032 USA
[3] Loyola Univ, Med Ctr, Dept Epidemiol & Prevent Med, Maywood, IL 60153 USA
[4] Rockefeller Univ, New York, NY 10021 USA
[5] Beth Israel Deaconess Med Ctr, Div Endocrinol, Boston, MA 02215 USA
[6] Yale Univ, Sch Med, Div Pediat Endocrinol, New Haven, CT 06510 USA
[7] Columbia Univ, Coll Phys & Surg, St Lukes Roosevelt Hosp Ctr, Obes Res Ctr, New York, NY 10025 USA
[8] Northwestern Univ, Sch Med, Dept Med, Chicago, IL 60611 USA
[9] Columbia Univ Coll Phys & Surg, H Houston Merritt Clin Res Ctr Muscular Dystrophy, New York, NY 10032 USA