[1] Osaka Univ, Grad Sch Med, Dept Palliat Med, Suita, Osaka 5650871, Japan
[2] Tohoku Univ, Grad Sch Med, Div Palliat Nursing, Sendai, Miyagi 980, Japan
[3] Seirei Mikatahara Gen Hosp, Palliat Care Team, Dept Palliat & Support Care, Hamamatsu, Shizuoka, Japan
[4] Seirei Mikatahara Gen Hosp, Seirei Hosp, Hamamatsu, Shizuoka, Japan
[5] Palliat Care Partners Co Ltd, Minato Ku, Tokyo, Japan
[6] Yamanashi Prefectural Cent Hosp, Dept Palliat Care, Kofu, Yamanashi, Japan
[7] Yokohama Municipal Citizens Hosp, Yokohama, Kanagawa, Japan
[8] Nagano Red Cross Hosp, Dept Surg, Nagano, Japan
[9] Kobe Univ, Grad Sch Med, Dept Palliat Med, Kobe, Hyogo 657, Japan
[10] Univ Tsukuba, Fac Med, Div Hlth Innovat & Nursing, Ibaraki, Japan
[11] Teikyo Univ, Sch Med, Div Med Oncol, Itabashi Ku, Tokyo 173, Japan