BibTex format
@article{Knight:2020:10.1136/bmj.m3339,
author = {Knight, SR and Ho, A and Pius, R and Buchan, I and Carson, G and Drake, TM and Dunning, J and Fairfield, CJ and Gamble, C and Green, CA and Gupta, R and Halpin, S and Hardwick, HE and Holden, KA and Horby, PW and Jackson, C and Mclean, KA and Merson, L and Nguyen-Van-Tam, JS and Norman, L and Noursadeghi, M and Olliaro, PL and Pritchard, MG and Russell, CD and Shaw, CA and Sheikh, A and Solomon, T and Sudlow, C and Swann, OV and Turtle, LCW and Openshaw, PJM and Baillie, JK and Semple, MG and Docherty, AB and Harrison, EM},
doi = {10.1136/bmj.m3339},
journal = {BMJ},
title = {Risk stratification of patients admitted to hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: development and validation of the 4C Mortality Score},
url = {http://dx.doi.org/10.1136/bmj.m3339},
volume = {370},
year = {2020}
}