1. Belokrinitskaya TE, Shapovalov KG. Gripp i beremennost’. M.: GEOTAR-Media; 2015. (In Russ.)
2. Romanovskaia AV, Maleev VV, Khvorostukhina NF. The impact of influenza on the course of pregnancy, fetal development and the health of the newborn. Voprosy ginekologii, akusherstva i perinatologii. 2014;13(2):49-53. (In Russ.)
3. Profilaktika, diagnostika i lechenie novoj koronavirusnoj infekcii (COVID-19). Vremennye metodicheskie rekomendacii. Minzdrav Rossii. Versiya 9. 26.10.20. Accessed January 11, 2021. (In Russ.). https://static-0.minzdrav.gov.ru/system/attachments/attaches/000/052/550/original/MP_COVID-19_%28v9%29.pdf?1603788097
4. Organizaciya okazaniya medicinskoj pomoshchi beremennym, rozhenicam, rodil’nicam i novorozhdennym pri novoj koronavirusnoj infekcii COVID-19. Metodicheskie rekomendacii. Minzdrav Rossii. Versiya 3. 25.01.21. Accessed February 19, 2021. (In Russ.). https://static-3.rosminzdrav.ru/system/attachments/attaches/000/050/533/original/28052020_Preg_COVID-19_2.pdf
5. Dynamics of the epidemic process and the course of the COVID-19 in pregnant women of the Far Eastern and Siberian Federal Districts