Affiliation: | 1. Pathology and Clinical Laboratory, National Cancer Centre Hospital, Tokyo, Japan;2. Musculoskeletal Oncology, National Cancer Centre Hospital, Tokyo, Japan;3. Paediatric Oncology, National Cancer Centre Hospital, Tokyo, Japan;4. Pathology, National Centre for Child Health and Development, Tokyo, Japan;5. Pathology, Saitama Children's Medical Centre, Saitama, Japan |