1. Department of Gastroenterology, Fujita Health University Bantane Hospital , Otoubashi, Nakagawa-ku, Nagoya, Aichi, Japan
2. Department of Gastroenterology, Yamashita Hospital , Nakamachi, Ichinomiya, Aichi, Japan
3. Board Chairman, Geriatric Health Services Facility Yuki , Mizuhomachi, Handa, Aichi, Japan
4. Department of Gastroenterology, Fujita Health University Okazaki Medical Center , Harisakicho, Okazaki, Aichi, Japan