1. Department of Psycho-oncology, National Cancer Center Hospital
2. Division of Health Care Research, QOL Research Group, Center for Public Health Sciences, National Cancer Center
3. Innovation Center for Supportive, Palliative and Psychosocial Care, National Cancer Center Hospital
4. QOL Research Group, Center for Public Health Sciences, National Cancer Center
5. Department of Colorectal Surgery, National Cancer Center Hospital, Tokyo, Japan