Markin, L. B., and L. M. Yashchenko. “PLACENTAL INSUFFICIENCY AS A RISK FACTOR FOR POST-TERM PREGNANCY”. Actual Problems of Pediatrics, Obstetrics and Gynecology, no. 1 (May 24, 2019): 114–118. Accessed July 25, 2025. https://ojs.tdmu.edu.ua/index.php/act-pit-pediatr/article/view/9871.