Predictors of Improvement or Decline in Instrumental Activities of Daily Living among Community-Dwelling Older Japanese 論文 Yoshinori Fujiwara・Hiroto Yoshida・Hidenori Amano・Taro Fukaya・Jersey Liang・Hayato Uchida・Shoji Shinkai ·2008-01-01 ·『Gerontology』 54(6) pp. 373-380 doi:10.1159/000151221