BibTex format
@article{Clarke:2021:10.1136/bmj.n1239,
author = {Clarke, JM and Majeed, A and Beaney, T},
doi = {10.1136/bmj.n1239},
journal = {BMJ},
pages = {1--2},
title = {Measuring the impact of covid-19},
url = {http://dx.doi.org/10.1136/bmj.n1239},
volume = {373},
year = {2021}
}