1. Psycho-Oncology Division, Research Center for Innovative Oncology; National Cancer Center Hospital East; Kashiwa Chiba Japan
2. Graduate School of Comprehensive Human Sciences; University of Tsukuba; Tsukuba Ibaraki Japan
3. Graduate School of Clinical Psychology; Teikyo Heisei University; Toshima Tokyo Japan
4. Psycho-Oncology Division; Chiba Cancer Center; Chiba Chiba Japan
5. Psychiatric Services Division; National Cancer Center Hospital; Tokyo Japan
6. Department of Psychiatry and Cognitive-Behavioral Medicine; Nagoya City University Graduate School of Medical Sciences; Nagoya Aichi Japan
7. Hematology Oncology Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
8. Hepatobiliary and Pancreatic Oncology Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
9. Head and Neck Surgery Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
10. Gastric Surgery Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
11. Digestive Endoscopy and Gastrointestinal Oncology Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
12. Thoracic Surgery Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
13. Palliative Care Division; National Cancer Center Hospital East; Kashiwa Chiba Japan