[1] Natl Canc Ctr, Res Inst, Psychooncol Div, E Kashiwa, Japan
[2] Hiroshima Univ, Fac Med, Inst Hlth Sci, Div Occupat Therapy, Hiroshima, Japan
[3] Tochigi Canc Ctr Res Inst, Canc Prevent Unit, Oncogene Res Unit, Utsunomiya, Tochigi, Japan
[4] Natl Canc Ctr, Res Inst, Div Genet, Tokyo 104, Japan
[5] Univ Tokyo, Grad Sch Med, Dept Adult Nursing Terminal & Long Term Care Nurs, Tokyo, Japan