Kozłowska, M., M. Zaniuk, P. Wójcik, M. Rogowska, and J. Tomczyk. “Safety of Anti-Influenza Vaccination During Pregnancy”. Journal of Education, Health and Sport, vol. 10, no. 9, Sept. 2020, pp. 664-70, doi:10.12775/JEHS.2020.10.09.080.