[1] Eunice Kennedy Shriver Natl Inst Child Hlth & Huma, Bethesda, MD USA
[2] Childrens Natl Hosp, Div Dermatol, Washington, DC USA
[3] Childrens Mercy Hosp, Dept Anesthesiol, Kansas City, MO USA
[4] Childrens Natl Hosp, Dept Surg, Pediat & Adolescent Gynecol, Washington, DC USA
[5] Childrens Mercy Hosp, Dept Surg, Pediat & Adolescent Gynecol, Kansas City, MO USA
[6] 2401 Gillham Rd, Kansas City, MO 64108 USA