[1] Princess Maxima Ctr Pediat Oncol, Heidelberglaan 25, NL-3584 CS Utrecht, Netherlands
[2] Erasmus MC Sophia Childrens Hosp, Dept Pediat Oncol Hematol, Rotterdam, Netherlands
[3] CHC Clin Mt Legia Liege, Div Pediat Hematol Oncol, Liege, Belgium
[4] Stanford Sch Med, Dept Pediat, Stanford, CA 94305 USA
[5] Stanford Sch Med, Stanford Canc Inst, Stanford, CA 94305 USA
[6] CHU Nantes, Dept Oncol & Hematol, Nantes, France
[7] CHRU Nancy, Dept Oncol & Hematol, Childrens Hosp, Vandoeuvre Les Nancy, France
[8] Tel Aviv Univ, Sackler Fac Med, Schneider Childrens Med Ctr Israel, Pediat Hematol Oncol, Tel Aviv, Israel
[9] Childrens Hosp Westmead, Canc Ctr Children, Westmead, NSW, Australia
[10] Cent Hosp Southern Pest, Pediat Hematol & Stem Cell Transplantat Dept, Natl Inst Hematol & Infect Dis, Budapest, Hungary
[11] Chinese Univ Hong Kong, Dept Paediat, Hong Kong, Peoples R China
[12] Natl Res Inst Child Hlth & Dev, Dept Pediat Hematol & Oncol Res, Tokyo, Japan
[13] Pavlov Univ, RM Gorbacheva Mem Inst Children Oncol Hematol & T, St Petersburg, Russia
[14] Copenhagen Univ Hosp, Dept Pediat & Adolescent Med, Rigshosp, Copenhagen, Denmark
[15] Univ Copenhagen, Fac Hlth, Inst Clin Med, Copenhagen, Denmark
[16] Univ Childrens Hosp Zurich, Dept Oncol, Zurich, Switzerland
[17] Cincinnati Childrens Hosp Med Ctr, Div Oncol, Canc & Blood Dis Inst, Cincinnati, OH 45229 USA
[18] Univ Cincinnati, Coll Med, Dept Pediat, Cincinnati, OH USA