Obolonskyi, A., V. Snisar, D. Surkov, O. Obolonska, O. Kapustina, and K. Dereza. 2019. “Management of Patent Ductus Arteriosus in Premature Infants”. Medicni Perspektivi 24 (2):33-40. https://doi.org/10.26641/2307-0404.2019.2.170125.