1. *Department of Internal Medicine, Japanese Red Cross Nagoya First Hospital, Nagoya, Aichi, Japan
2. **First Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Aichi, Japan
3. ***Department of Pediatric Surgery, Japanese Red Cross Nagoya First Hospital, Nagoya, Aichi, Japan
4. ****Department of Gastroenterology, Shizuoka Social Welfare Hospital, Shizuoka, Japan
5. *****Department of Pediatrics, Kitasato University, Kanagawa, Japan
6. ******Department of Surgery, Kitasato University, Kanagawa, Japan