1. Department of Palliative Care, Miyazaki Medical Association Hospital, Miyazaki, Japan.
2. Palliative Care Team, Department of Palliative and Supportive Care, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
3. Seirei Hospice, Seirei Mikatahara General Hospital, Hamamatsu, Japan.
4. Hospice Children's Hospice Hospital, Yodogawa Christian Hospital, Osaka, Japan.
5. Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
6. Department of Palliative Medicine, Rokko Hospital, Kobe, Japan.
7. Department of Palliative Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
8. Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.