@article{doi:10.1001/jama.2011.478,
author = {Cram P and Lu X and Kaboli PJ and et al},
title = {CLinical characteristics and outcomes of medicare patients undergoing total hip arthroplasty, 1991-2008},
journal = {JAMA},
volume = {305},
number = {15},
pages = {1560-1567},
year = {2011},
doi = {10.1001/jama.2011.478},
URL = { + http://dx.doi.org/10.1001/jama.2011.478},
eprint = {/data/Journals/JAMA/20325/joc15032_1560_1567.pdf}
}