BibTex format
@article{Law:2014:10.1136/bmjspcare-2012-000432,
author = {Law, S and Boyd, S and MacDonald, J and Raeside, D and Anderson, D},
doi = {10.1136/bmjspcare-2012-000432},
journal = {BMJ Supportive & Palliative Care},
pages = {140--145},
title = {Predictors of survival in patients with chronic obstructive pulmonary disease receiving long-term oxygen therapy},
url = {http://dx.doi.org/10.1136/bmjspcare-2012-000432},
volume = {4},
year = {2014}
}