[1] Cook Childrens Med Ctr, Div Endocrinol, Ft Worth, TX 76104 USA
[2] Childrens Hosp Philadelphia, Div Endocrinol, Philadelphia, PA 19104 USA
[3] Waikato Dist Hlth Board, Newborn Intens Care Unit, Hamilton, New Zealand
[4] Texas Childrens Hosp, Childrens Nutr Res Ctr, Houston, TX 77030 USA
[5] Great Ormond St Hosp Children NHS Fdn Trust, Dept Endocrinol, London, England
[6] Massachusetts Gen Hosp, Pediat Endocrine Unit, Boston, MA 02114 USA
[7] Mayo Clin, Div Prevent Med, Rochester, MN USA
[8] Univ Colorado, Div Neonatol, Sch Med, Aurora, CO USA
[9] Childrens Hosp Philadelphia, Div Neonatol, Philadelphia, PA 19104 USA
[10] Childrens Hosp Pittsburgh, Div Endocrinol Diabet & Metab, Pittsburgh, PA 15213 USA
[11] Univ Florida, Coll Med, Glycogen Storage Dis Program, Gainesville, FL USA
[12] Washington Univ, Dept Pediat & Med, St Louis, MO USA
[13] Boston Childrens Hosp, Div Endocrinol, Boston, MA USA