BibTex format
@article{Kernan:2013:10.1183/09031936.00018712,
author = {Kernan, NG and Alton, EWFW and Cullinan, P and Griesenbach, U and Bilton, D},
doi = {10.1183/09031936.00018712},
journal = {EUROPEAN RESPIRATORY JOURNAL},
pages = {67--73},
title = {Oral contraceptives do not appear to affect cystic fibrosis disease severity},
url = {http://dx.doi.org/10.1183/09031936.00018712},
volume = {41},
year = {2013}
}