1. Department of Palliative Medicine, National Cancer Center Hospital, Tokyo, Japan.
2. Department of Palliative and Supportive Medicine, Graduate School of Medicine, Aichi Medical University, Aichi, Japan.
3. School of Health Care Sciences, Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
4. Department of Human Nutrition, Faculty of Human Nutrition. Tokyo Kasei Gakuin University, Tokyo, Japan.
5. School of Healthcare Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, United Kingdom.
6. Division of Palliative Care Medicine, Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, Alberta, Canada.
7. Palliative and Supportive Care Division, Seirei Mikatahara General Hospital, Hamamatsu City, Japan.
8. Department of Biostatistics, JORTC Data Center, Tokyo, Japan.
9. Liaison Psychiatry and Psycho-oncology Unit, Department of Psychiatry and Behavioral Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.