[1] Eastern Virginia Med Sch, Dept Med, Strelitz Diabet & Neuroendocrine Unit, Norfolk, VA 23501 USA
[2] Loyola Univ, Med Ctr, Dept Endocrinol Diabet & Metab, 2160 S 1st Ave, Maywood, IL 60153 USA
[3] Univ Chicago, Pritzker Sch Med, Chicago, IL 60637 USA
[4] Metab Inst Amer, Tarzana, CA USA
[5] George Washington Univ, Alexandria, VA USA
[6] Riverside Reg Med Ctr, Newport News, VA USA
[7] Cleveland Clin, Dept Endocrinol Diabet & Metab, Cleveland, OH 44106 USA