Ігнатенко, Є. (2025) “Early echographic criteria of risk of premature births are at multiple pregnancy”, Perinatology and reproductology: from research to practice. Kyiv, Ukraine, 5(2-2), pp. 7–12. Available at: https://www.par.org.ua/index.php/par/article/view/329 (Accessed: 4 February 2026).