[1] Montefiore Med Ctr, Albert Einstein Coll Med, Dept Pediat, Bronx, NY 10467 USA
[2] Schneider Childrens Hosp, Div Pediat Hematol Oncol & Stem Cell Transplantat, New Hyde Pk, NY USA
[3] Massachusetts Gen Hosp, Serv Gynecol Obstet, Boston, MA 02114 USA
[4] Massachusetts Gen Hosp, Dept Pathol, Boston, MA 02114 USA
[5] Harvard Univ, Sch Med, Dept Radiol, Cambridge, MA 02138 USA
[6] Harvard Univ, Sch Med, Dept Pathol, Cambridge, MA 02138 USA