@article{Ishizaki2002,
author = {Ishizaki, T. and Kai, I. and Kobayashi, Y. and Imanaka, Y.},
title= {Functional transitions and active life expectancy for older Japanese living in a community},
year = {2002},
doi = {10.1016/j.jclinepi.2004.12.011},
journal = {Archives of Gerontology and Geriatrics},
volume = {35},
number = {2},
pages = {107--120},
}