1. Department of Gastroenterological Surgery; Graduate School of Medical Science; Kumamoto University; Kumamoto; Japan
2. Division of Gene Regulation; Institute for Advanced Medical Research; Tokyo; Japan
3. Division of Genetics; Cancer Research Institute; Kanazawa University; Kanazawa; Japan
4. Cell Biology Laboratory; Department of Pharmaceutical Sciences; School of Pharmacy; Kinki University; Osaka; Japan
5. Histopathology Unit; London Research Institute; Cancer Research UK; London; UK
6. Department of Surgery; School of Medicine; Keio University; Tokyo; Japan