[1] Univ Tokyo, Grad Sch Med, Sch Hlth Sci & Nursing, Dept Adult Nursing Palliat Care Nursing,Bunkyo, Tokyo 1130033, Japan
[2] Seirei Mikatahara Hosp, Palliat Care Team & Seirei Hosp, Dept Palliat & Support Core, Shizuoka, Japan
[3] Osaka Univ, Grad Sch Human Sci, Ctr Study Commun Design Psychol & Behav Sci, Osaka, Japan
[4] Osaka Univ, Grad Sch Med, Dept Complementary & Alternat Med, Osaka, Japan
[5] Tsukuba Med Ctr Hosp, Dept Palliat Med, Ibaraki, Japan
[6] Natl Canc Ctr Hosp, Res Ctr Innovat Oncol, Psychooncol Div, Chiba, Japan