1. Department of Adult Nursing/Palliative Care Nursing, School of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
2. Nagoya University, Aichi, Japan.
3. Home Palliative Care Support Center “Rainbow,” Miyagi, Japan.
4. Gerontological Policy, National Center for Geriatrics and Gerontology, Aichi, Japan.