Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ISHIZAKI Tatsuro,Active life expectancy and predictors for maintaining functional independence among older Japanese,Geriatrics & gerontology international,14441586,,2004-09-01,4,,S132-S134,https://cir.nii.ac.jp/crid/1570291225455475584,