@article{doi:10.1001/archinternmed.2012.3250,
author = {Brozek JL and Kraft M and Krishnan JA and et al},
title = {Long-acting β2-agonist step-off in patients with controlled asthma: Systematic review with meta-analysis},
journal = {Archives of Internal Medicine},
volume = {172},
number = {18},
pages = {1365-1375},
year = {2012},
doi = {10.1001/archinternmed.2012.3250},
URL = { + http://dx.doi.org/10.1001/archinternmed.2012.3250},
eprint = {/data/Journals/INTEMED/25300/ira120010_1365_1375.pdf}
}