Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) VISSER M,"Muscle mass, muscle strength, and muscle fat infiltration as predictors of incident mobility limitations in well-functioning older persons",J Gerontol A Biol Sci Med Sci,,,2005,60,,324-333,https://cir.nii.ac.jp/crid/1571698600455946752,