@article{doi:10.1001/archinternmed.2009.270,
author = {Tabak YP and Sun X and Johannes RS and Gupta V and Shorr AF},
title = {Mortality and need for mechanical ventilation in acute exacerbations of chronic obstructive pulmonary disease: Development and validation of a simple risk score},
journal = {Archives of Internal Medicine},
volume = {169},
number = {17},
pages = {1595-1602},
year = {2009},
doi = {10.1001/archinternmed.2009.270},
URL = { + http://dx.doi.org/10.1001/archinternmed.2009.270},
eprint = {/data/Journals/InteMed/5741/ioi90060_1595_1602.pdf}
}