S.I. Malyavskaya¹, G.N. Kostrova¹, E.V. Golysheva², A.V. Strelkova¹, A.V. Lebedev¹, V.a. Ternovskaya¹, T.V. Pyatlina², A.L. Turabova², M.I Nikitina², E.a. Bulyina¹ ¹Northern State Medical University, Arkhangelsk ²Arkhangelsk Regional Children’s Clinical Hospital named after P. G. Vyzhletsov  For correspondence:  Malyavskaya S.V. — D. Med. Sc., Professor, Head of the Department of Pediatrics of Northern State Medical University, […]