[1] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Pediat & Adolescent Gynecol, NIH, Bethesda, MD USA
[2] Childrens Natl Hosp, Dept Surg, Washington, DC USA
[3] Childrens Natl Hosp, Div Endocrinol, Washington, DC USA
[4] George Washington Univ, Sch Med, Washington, DC USA