1. Department of Pain and Palliative Care, Kameda General Hospital, Kamogawa, Chiba, Japan
2. Department of Rehabilitation Medicine, Seirei Mikatahara General Hospital, Hamamatsu, Shizuoka, Japan
3. Department of Rehabilitation Medicine, Kameda General Hospital, Kamogawa, Chiba, Japan
4. Department of Palliative Nursing, Health Sciences, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
5. Department of Palliative and Supportive Care, Palliative Care Team, and Seirei Hospice, Seirei Mikatahara General Hospital, Hamamatsu, Shizuoka, Japan