[1] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Sect Liaison Psychiat & Palliat Med, Tokyo, Japan
[2] Tokyo Metropolitan Childrens Med Ctr, Dept Hematol Oncol, Tokyo, Japan
[3] Tokyo Kyosai Hosp, Dept Nephrol, Tokyo, Japan
[4] Akiru Municipal Med Ctr, Dept Palliat Med, Tokyo, Japan
[5] Jikei Univ, Sch Med, Dept Pediat, Tokyo, Japan