@article{Wu_2022,
title={Validity of ICD-10 codes for COVID-19 patients with hospital admissions or ED visits in Canada: a retrospective cohort study},
volume={12},
ISSN={2044-6055},
url={http://dx.doi.org/10.1136/bmjopen-2021-057838},
DOI={10.1136/bmjopen-2021-057838},
number={1},
journal={BMJ Open},
publisher={BMJ},
author={Wu,
Guosong and D’Souza,
Adam G and Quan,
Hude and Southern,
Danielle A and Youngson,
Erik and Williamson,
Tyler and Eastwood,
Cathy and Xu,
Yuan},
year={2022},
month=jan,
pages={e057838} }