Siromakha, S. O., Y. V. Davydova, A. Y. Limanska, and V. V. Lazoryshynets. “Maternal and Perinatal Risk Stratification in Cardiovascular Pathology. A Modern View on the Problem”. Ukrainian Journal of Cardiovascular Surgery, no. 3 (40), Sept. 2020, pp. 98-106, doi:10.30702/ujcvs/20.4009/049098-106/618.3.