1. Division of Inflammation Research Center for Molecular Medicine Jichi Medical University Tochigi Japan
2. Division of Gastroenterological, General and Transplant Surgery Department of Surgery Jichi Medical University Tochigi Japan
3. Department of Gastroenterological Surgery Hirosaki University Graduate School of Medicine Hirosaki Japan
4. Department of Transplant Surgery Saitama Children's Medical Center Saitama Japan
5. Division of Histology and Cell Biology Department of Anatomy Jichi Medical University Tochigi Japan
6. Division of Ultrastructural Research National Institute for Physiological Sciences Aichi Japan