APA (7th ed.) Citation

SR, K., A, H., R, P., I, B., G, C., TM, D., . . . EM, H. (2020). 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. BMJ (Clinical research ed.), 370, m3339. https://doi.org/10.1136/bmj.m3339

Chicago Style (17th ed.) Citation

SR, Knight, et al. "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." BMJ (Clinical Research Ed.) 370 (2020): m3339. https://doi.org/10.1136/bmj.m3339.

MLA (9th ed.) Citation

SR, Knight, et al. "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." BMJ (Clinical Research Ed.), vol. 370, 2020, p. m3339, https://doi.org/10.1136/bmj.m3339.