For citations:

Gerasimov N.A., Shibaev A.N., Lebedeva T.Yu., Gnusaev S.F., Federyakina O.B. Open ductus arteriosus in preterm newborns: a modern view of a last-standing problem. Astrakhan medical journal. 2019;14(4):6-17. (In Russ.) https://doi.org/10.17021/2019.14.4.6.17