@article{Yancik2007,
author = {Yancik, R. and Ershler, W.B. and Satariano, W. and Hazzard, W. and Cohen, H.J. and Ferrucci, L.},
title= {Report of the National Institute on Aging Task Force on Comorbidity},
year = {2007},
journal = {Journal of Gerontology: Medical Sciences},
volume = {62A},
number = {3},
pages = {275--280},
}