1. Department of Palliative Care, Tokyo Kyosai Hospital
2. Graduate School of Public Health, St. Luke's International University
3. Department of Palliative and Supportive Care, Seirei Mikatahara General Hospital
4. Department of Palliative Care, Senri-Chuo Hospital
5. Department of Palliative Medicine, Kobe University School of Medicine
6. Department of Palliative Medicine, National Cancer Center Hospital
7. Department of Palliative Care, Daini Kyoritsu Hospital
8. Faculty of Medicine, University of Tsukuba