1. Department of Palliative Nursing, Health Sciences, Tohoku University Graduate School of Medicine
2. Department of Palliative and Supportive Care, Seirei Mikatahara Hospital
3. Department of Palliative and Supportive Care, Faculty of Medicine, Tsukuba University
4. Department of Human Health Sciences, Kyoto University Graduate School of Medicine
5. Department of Palliative Medicine, Tsukuba Medical Center Hospital