@article{Penninx1999,
author = {Penninx, B.W.J.H. and Leveille, S. and Ferrucci, L. and Van Eijk, J.T.M. and Guralnik, J.M. },
title= {Exploring the effect of depression on physical disability: Longitudinal evidence from the established populations for epidemiologic studies of the elderly},
year = {1999},
doi = {10.2105/AJPH.89.9.1346},
journal = {American Journal of Public Health },
volume = {89},
number = {9},
pages = {1346--1352},
}