1. Department of Psychiatry and Cognitive‐Behavioral Medicine Nagoya City University Graduate School of Medical Sciences Nagoya Japan
2. Division of Palliative Care and Psycho‐oncology Nagoya City University Hospital Nagoya Japan
3. Department of Palliative and Supportive Care, Palliative Care Team, and Seirei Hospice, Seirei Mikatahara General Hospital Hamamatsu Japan
4. Department of Palliative Medicine Kobe University Graduate School of Medicine Kobe Japan
5. Department of Palliative Medicine, Tsukuba Medical Center Hospital Tsukuba Japan
6. Department of Palliative Medicine Tochigi Cancer Center Utsunomiya Japan
7. Department of Psycho‐Oncology Service, National Cancer Center Hospital East Kashiwa Japan
8. Department of Stress Sciences and Psychosomatic Medicine Graduate School of Medicine, The University of Tokyo Bunkyo‐ku Japan
9. Department of Palliative Medicine Saitama Medical University Irima‐gun Japan