BibTex format
@article{Sharabiani:2012:10.1097/MLR.0b013e31825f64d0,
author = {Sharabiani, MTA and Aylin, P and Bottle, A},
doi = {10.1097/MLR.0b013e31825f64d0},
journal = {MEDICAL CARE},
pages = {1109--1118},
title = {Systematic Review of Comorbidity Indices for Administrative Data},
url = {http://dx.doi.org/10.1097/MLR.0b013e31825f64d0},
volume = {50},
year = {2012}
}