@article{doi:10.1001/archinternmed.2011.530,
author = {Alía I and de la Cal MA and Esteban A and et al},
title = {EFficacy of corticosteroid therapy in patients with an acute exacerbation of chronic obstructive pulmonary disease receiving ventilatory support},
journal = {Archives of Internal Medicine},
volume = {171},
number = {21},
pages = {1939-1946},
year = {2011},
doi = {10.1001/archinternmed.2011.530},
URL = { + http://dx.doi.org/10.1001/archinternmed.2011.530},
eprint = {/data/Journals/INTEMED/22534/ioi15065_1939_1946.pdf}
}