1. Division of Palliative and Supportive Care, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
2. Division of Palliative and Supportive Care, Palliative Care Team, and Seirei Hospice, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
3. Division of Palliative Care, Konan Medical Center, Kobe, Japan.
4. Department of Palliative Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.