1. Department of Molecular Hematology; Faculty of Molecular Medical Biology; Graduate School of Medical Sciences; Kitasato University; Minami-ku Sagamihara Kanagawa 252-0374 Japan
2. Laboratory of Tumor Cell Biology; Department of Computational Biology and Medical Sciences; Graduate School of Frontier Sciences; University of Tokyo; Minato-ku Tokyo 108-8639 Japan
3. Division of Hematology; Department of Laboratory Sciences; School of Allied Health Sciences; Kitasato University; Minami-ku Sagamihara Kanagawa 252-0373 Japan