1. Department of Palliative Medicine; Osaka City General Hospital; Osaka City Osaka Japan
2. Department of Palliative Medicine, Graduate School of Medicine; Osaka University; Suita City Osaka Japan
3. Palliative and Supportive Care Division; Seirei Mikatahara General Hospital; Hamamatsu City Shizuoka Japan
4. Department of Psychiatry; Jichi Medical University Saitama Medical Center; Saitama City Saitama Japan
5. Palliative Care Team; Osaka Medical Center for Cancer and Cardiovascular Diseases; Osaka City Osaka Japan
6. Department of Palliative Nursing, Health Sciences; Tohoku University Graduate School of Medicine; Sendai City Miyagi Japan
7. Department of Palliative Medicine; Kobe University Graduate School of Medicine; Kobe City Hyogo Japan
8. Palliative Care Center, Department of Palliative Medicine; Kyoto University Hospital; Kyoto Japan
9. Department of Palliative Medicine; Tsukuba Medical Center Hospital; Tsukuba City Ibaraki Japan