@article{Michael2001,
author = {Michael, Y.L. and Berkman, L.F. and Colditz, G.A. and Kawachi, I.},
title= {Living Arrangements, Social Integration, and Change in Functional Health Status},
year = {2001},
doi = {10.1093/aje/153.2.123},
journal = {American Journal of Epidemiology},
volume = {153},
number = {2},
pages = {123--131},
}