Ditkivskyy, I.O., Voloshyn, D.L., Yermolovych, Y.V., Perepeka, I.A. and Lazoryshynets, V.V. 2022. Endovascular Closure of Secondary Septal Defect in Children with Low Body Weight. Ukrainian Journal of Cardiovascular Surgery. 30, 4 (Dec. 2022), 53-58. DOI:https://doi.org/10.30702/ujcvs/22.30(04)/DV061-5358.