1. Faculty of Nursing, St. Mary's College, Fukuoka, Japan.
2. Department of Palliative and Supportive Care, Palliative Care Team, and Seirei Hospice, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
3. Department of Psychiatry and Cognitive-Behavioral Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
4. Kyoto Seizan College, Kyoto, Japan.
5. St. Mary's Hospital, Kurume, Japan.