1. Section for Studies on Metastasis, National Cancer Center Research Institute, Tokyo, Japan
2. Department of Biology, School of Education, Waseda University, Tokyo, Japan
3. Department of Surgery, International Medical Center of Japan, Tokyo, Japan
4. Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Science, Tottori University, Yonago, Tottori, Japan