[1] Childrens Hosp Montefiore, Albert Einstein Coll Med, Dept Pediat, Bronx, NY 10467 USA
[2] Lucile Packard Childrens Hosp, Bass Ctr Day Hosp & Clin, Stanford, CA USA
[3] Univ Calif San Francisco, Dept Pathol, San Francisco, CA 94140 USA
[4] Univ Texas MD Anderson Canc Ctr, Div Pediat, Houston, TX 77030 USA
[5] Univ Texas MD Anderson Canc Ctr, Dept Biostat, Houston, TX 77030 USA
[6] Baylor Coll Med, Dept Pediat, Div Hematol Oncol, Houston, TX 77030 USA
[7] Univ Florida, Coll Med, Dept Biostat, Gainesville, FL USA
[8] Univ Florida, Coll Publ Hlth & Hlth Profess, Gainesville, FL USA
[9] Univ Tennessee, Coll Med, Van Andel Res Inst, Chattanooga, TN USA
[10] Univ Tennessee, Coll Med, Div Pediat Hematol Oncol, Chattanooga, TN USA
[11] Univ Colorado, Ctr Childhood Canc & Blood Disorders, Denver, CO 80202 USA
[12] Childrens Hosp, Denver, CO 80218 USA
[13] Yale Univ, New Haven, CT USA
[14] Hosp Sick Children, Dept Hematol Oncol, Toronto, ON M5G 1X8, Canada
[15] Univ Alabama Birmingham, Dept Surg & Pediat, Birmingham, AL USA
[16] Univ Washington, Dept Surg, Seattle, WA 98195 USA
[17] Univ Cincinnati, Dept Med & Pediat, Inst Canc, Cincinnati, OH USA
[18] Univ Cincinnati, Coll Med, Div Hematol Oncol, Cincinnati, OH USA