BibTex format
@article{Polkey:2019:10.1016/j.ccm.2019.02.015,
author = {Polkey, M},
doi = {10.1016/j.ccm.2019.02.015},
journal = {CLINICS IN CHEST MEDICINE},
pages = {307--+},
title = {Respiratory Muscle Assessment in Clinical Practice},
url = {http://dx.doi.org/10.1016/j.ccm.2019.02.015},
volume = {40},
year = {2019}
}