Li, Z., L. Feng, W. Cui, J. . Zhang, Y. Huang, Y. Zhao, F. Teng, D. Wu, H. Wang, L. Deng, and Q. Yu. “Sex Differences in Patients With COVID-19: A Retrospective Cohort Study and Meta-Analysis”. Open Access Macedonian Journal of Medical Sciences, vol. 8, no. T1, Dec. 2020, pp. 574-97, doi:10.3889/oamjms.2020.5380.