BibTex format
@article{Zhai:2011:10.1378/chest.10-3357,
author = {Zhai, Z and Murphy, K and Tighe, H and Wang, C and Wilkins, MR and Gibbs, JSR and Howard, LS},
doi = {10.1378/chest.10-3357},
journal = {CHEST},
pages = {1284--1291},
title = {Differences in Ventilatory Inefficiency Between Pulmonary Arterial Hypertension and Chronic Thromboembolic Pulmonary Hypertension},
url = {http://dx.doi.org/10.1378/chest.10-3357},
volume = {140},
year = {2011}
}