[1] Mie Prefectural Coll Nursing, Tsu, Mie 5140116, Japan
[2] Univ Tokyo, Dept Family Nursing, Grad Sch Med, Bunkyo Ku, Tokyo 1130033, Japan
[3] Grp Home Wakatake Nishisugeta, Kanagawa Ku, Yokohama, Kanagawa 2210864, Japan
[4] Chiba Univ, Dept Visiting Nursing, Sch Nursing, Chuo Ku, Chiba 2608672, Japan
[5] Tokyo Dementia Care Res & Training Ctr, Suginami Ku, Tokyo, Japan