BibTex format
@article{Rothnie:2020:10.1016/j.chest.2020.02.069,
author = {Rothnie, KJ and Quint, JK},
doi = {10.1016/j.chest.2020.02.069},
journal = {CHEST},
pages = {831--832},
title = {Methodologic Issues With Comparative Effectiveness Study on LAMA-LABA-ICS vs LAMA-LABA for the Treatment of COPD in the Clinical Practice Research Datalink},
url = {http://dx.doi.org/10.1016/j.chest.2020.02.069},
volume = {158},
year = {2020}
}