Kupriianova, L., and A. Pakhlivanzade. “Immunohistochemical Features of the collagen’ Formation in the Uterus of Fetuses With a Gestational Term of 21-28 Weeks from Mothers, Whose Pregnancy Was Complicated by Preeclampsia of Different Stage of Severity”. Journal of Education, Health and Sport, vol. 11, no. 9, Sept. 2021, pp. 828-40, doi:10.12775/JEHS.2021.11.09.098.