[1] Hamamatsu Univ, Sch Med, Dept Community Hlth Care, Hamamatsu, Shizuoka, Japan
[2] Keio Univ, Fac Environm & informat Studies, Tokyo, Japan
[3] Tohoku Univ, Grad Sch Med, Dept Palliat Nursing, Sendai, Miyagi 980, Japan
[4] Tohoku Univ, Grad Sch Med, Div Biostat, Sendai, Miyagi 980, Japan
[5] Tsukuba Med Ctr Hosp, Dept Palliat Med, Tsukuba, Ibaraki, Japan
[6] Kobe Univ, Grad Sch Med, Dept Palliat Med, Kobe, Hyogo 657, Japan
[7] Natl Canc Ctr Hosp, Dept Palliat Med, Kashiwa, Chiba, Japan
[8] Shirahige Clin, Nagasaki, Japan
[9] Seirei Mikatahara Gen Hosp, Dept Palliat & Support Care, Palliat Care Team, Hamamatsu, Shizuoka 4338558, Japan
[10] Seirei Mikatahara Gen Hosp, Seirei Hospice, Hamamatsu, Shizuoka 4338558, Japan