@article{Fried2001,
author = {Fried, L.P. and Tangen, C.M. and Walston, J. and Newman, A.B. and Hirsch, C. and Gottdiener, J. and Seeman, T. and Tracy, R. and Kop, W.J. and Burke, G.},
title= {Frailty in older adults: Evidence for a phenotype},
year = {2001},
doi = {10.1093/gerona/56.3.M146},
volume = {56},
number = {3},
pages = {146--157},
}