1. Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan;
2. Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan;
3. Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan;
4. Department of Pediatrics, The University of Tokyo, Tokyo, Japan;
5. Department of Advanced Diagnosis, Clinical Research Center, Nagoya Medical Center, Nagoya, Japan;
6. Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan;
7. Division of Molecular and Clinical Epidemiology, Aichi Cancer Center Research Institute, Aichi, Japan;
8. Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan;
9. Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan;
10. Department of Translational Hematology and Oncology Research and Leukemia Program, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH;
11. MLL Munich Leukemia Laboratory, Munich, Germany;
12. Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan;
13. Division of Hematology, Jichi Medical University, Tochigi, Japan; and
14. Clinical Research Center, Nagoya Medical Center, Nagoya, Japan