1. Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo, Japan
2. Department of Nuclear Medicine, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
3. Department of Diagnostic Radiology and Nuclear Medicine, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
4. Department of Pharmacy, National Cancer Center Hospital East, Kashiwa, Japan
5. Department of Global Clinical Research, Graduate School of Medicine, Chiba University, Chiba, Japan
6. Department of Medical Oncology, Kochi Health Sciences Center, Kouchi, Japan
7. Department of Clinical Oncology, Hamamatsu University School of Medicine, Hamamatsu, Japan
8. Department of Oncology, National Center for Global Health and Medicine, Toyama, Japan