APA (7th ed.) Citation

Du, P., Li, D., Wang, A., Shen, S., Ma, Z., & Li, X. A Systematic Review and Meta-Analysis of Risk Factors Associated with Severity and Death in COVID-19 Patients. Wiley.

Chicago Style (17th ed.) Citation

Du, Pengqiang, Dandan Li, Aifeng Wang, Su Shen, Zhichao Ma, and Xingang Li. A Systematic Review and Meta-Analysis of Risk Factors Associated with Severity and Death in COVID-19 Patients. Wiley.

MLA (9th ed.) Citation

Du, Pengqiang, et al. A Systematic Review and Meta-Analysis of Risk Factors Associated with Severity and Death in COVID-19 Patients. Wiley.

Warning: These citations may not always be 100% accurate.