@article{Penninx2003,
author = {Penninx, B.W. and Guralnik, J.M. and Onder, G. and Ferrucci, L. and Wallace, R.B. and Pahor, M.},
title= {Anemia and decline in physical performance among older persons},
year = {2003},
doi = {10.1016/S0002-9343(03)00263-8},
journal = {American Journal of Medicine},
volume = {115},
number = {2},
pages = {104--110},
}