1 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Pediatrics, Khon Kaen University, Khon Kaen.
2 Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN.
3 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Division of Hematology-Oncology, Department of Pediatrics, Phramongkutklao Hospital and Phramongkutklao College of Medicine, Bangkok.
4 Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN.
5 School of Public Health, University of Alberta, Edmonton, Alberta.
6 Division of Hematology-Oncology, Department of Pediatrics, Phramongkutklao Hospital and Phramongkutklao College of Medicine, Bangkok.
7 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN.
8 Department of Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN.
9 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Radiology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Radiology, University of Tennessee Health Science Center, Memphis, TN.
10 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN.
11 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Epidemiology and Cancer Control, St. Jude Children's Research Hospital, Memphis, TN.
12 Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN, USA; Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN. hiroto.inaba@stjude.org.