BibTex format
@article{Williams:2022:10.1136/bmjresp-2022-001290,
author = {Williams, P and Cumella, A and Philip, K and Laverty, A and Nicholas, H},
doi = {10.1136/bmjresp-2022-001290},
journal = {BMJ Open Respiratory Research},
title = {Smoking and socio-economic factors linked to acute exacerbations of COPD: analysis from an Asthma + Lung UK survey},
url = {http://dx.doi.org/10.1136/bmjresp-2022-001290},
volume = {9},
year = {2022}
}