1. Department of Gastroenterological Surgery Kumamoto University Graduate School of Medical Sciences Kumamoto, Japan Center for Gastrointestinal Research Center for Translational Genomics and Oncology Baylor Scott & White Research Institute Charles A. Sammons Cancer Center Baylor University Medical Center Dallas, Texas
2. Department of Gastroenterological Surgery Kumamoto University Graduate School of Medical Sciences Kumamoto, Japan Department of Gastroenterological Surgery Omuta Tenryo Hospital Omuta, Japan
3. Department of Gastroenterological Surgery Kumamoto University Graduate School of Medical Sciences Kumamoto, Japan
4. Department of Gastroenterological Surgery Omuta Tenryo Hospital Omuta, Japan