COVID-19: Risk Factors Associated with Infectivity and Severity.

MLA

Fadl, Nahla, et al. “COVID-19: Risk Factors Associated with Infectivity and Severity.” Scandinavian Journal of Immunology, vol. 93, no. 6, June 2021, p. e13039. EBSCOhost, https://doi.org/10.1111/sji.13039.

APA

Fadl, N., Ali, E., & Salem, T. Z. (2021). COVID-19: Risk Factors Associated with Infectivity and Severity. Scandinavian Journal of Immunology, 93(6), e13039. https://doi.org/10.1111/sji.13039

Chicago

Fadl, Nahla, Esraa Ali, and Tamer Z Salem. 2021. “COVID-19: Risk Factors Associated with Infectivity and Severity.” Scandinavian Journal of Immunology 93 (6): e13039. doi:10.1111/sji.13039.