BibTex format
@article{Shaikh:2014:10.1164/rccm.201309-1618OC,
author = {Shaikh, ZF and Kelly, JL and Shrikrishna, D and de, Villa M and Mullen, MJ and Hopkinson, NS and Morrell, MJ and Polkey, MI},
doi = {10.1164/rccm.201309-1618OC},
journal = {AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE},
pages = {540--547},
title = {Patent Foramen Ovale Is Not Associated with Hypoxemia in Severe Chronic Obstructive Pulmonary Disease and Does Not Impair Exercise Performance},
url = {http://dx.doi.org/10.1164/rccm.201309-1618OC},
volume = {189},
year = {2014}
}