BibTex format
@article{Clark:2020:10.1016/S2214-109X(20)30264-3,
author = {Clark, A and Jit, M and Warren-Gash, C and Guthrie, B and Wang, HHX and Mercer, SW and Sanderson, C and McKee, M and Troeger, C and Ong, KL and Checchi, F and Perel, P and Joseph, S and Gibbs, HP and Banerjee, A and Eggo, RM},
doi = {10.1016/S2214-109X(20)30264-3},
journal = {LANCET GLOBAL HEALTH},
pages = {1003--1017},
title = {Global, regional, and national estimates of the population at increased risk of severe COVID-19 due to underlying health conditions in 2020: a modelling study},
url = {http://dx.doi.org/10.1016/S2214-109X(20)30264-3},
volume = {8},
year = {2020}
}