1. Division of Hematology/Oncology Kanagawa Children’s Medical Center 2‐138‐4 Mutsukawa, Minami‐ku Yokohama Kanagawa 232‐8555 Japan
2. Sanofi Genzyme Medical, Oncology Medical Sanofi K.K Tokyo Opera City Tower 3‐20‐2, Nishi Shinjuku, Shinjuku‐ku Tokyo 163‐1488 Japan
3. Medical Affairs Post‐Authorization Regulatory Studies Sanofi K.K Tokyo Opera City Tower 3‐20‐2, Nishi Shinjuku, Shinjuku‐ku Tokyo 163‐1488 Japan