A.A. SPIRIDONOV1, A.A. PODSHIVALIN2, E.V. BROVKINA1 1Children’s City Hospital with Prenatal Center, 45 Mendeleev Str., Nizhnekamsk, Russian Federation, 423570 2Children’s Republican Clinical Hospital, 140 Orenburgskiy Trakt, Kazan, Republic of Tatarstan, Russian Federation, 420138 Spiridonov A.A. ― Head of the Surgical Department №1 and Operating Unit of Children’s City Hospital with Prenatal Center, tel. (8555) 36-61-48, […]