@article{Haga1991,
author = {Haga, H. and Shibata, H. and Ueno, M. and Nagei, H. and Suyama, Y. and Matsuzaki, T. and Yasumury, S. and Koyano, W. and Hatano, S.},
title= {Factors contributing to longitudinal changes in activities of daily living (ADL): The Koganei Study},
year = {1991},
journal = {Journal of Cross-Cultural Gerontology},
volume = {6},
pages = {91--99},
}