1. Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo, 104-0045, Japan
2. Department of Gastroenterology & Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, 277-0882, Japan
3. Medicines Development Unit-Japan, Eli Lilly Japan K.K., Kobe, 651-0086, Japan
4. Safety Science, Eli Lilly Japan K.K., Kobe, 651-0086, Japan
5. Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, 135-0063, Japan
6. Department of Gastroenterology, Saitama Cancer Center, Saitama, 362-0806, Japan