M.R. SHAIDULLINA1,2, A.KH. SHAIMARDANOVA1  1Republic Сhildren’s Clinical Hospital, Kazan 2Kazan State Medical University, Kazan  Contact details: Shaidullina M.R. — PhD (medicine), Associate Professor of the Department of Endocrinology, Head of Endocrinology Unit Address: 140 Orenburgskiy trakt, Kazan, Russian Federation, 420064, tel.: +7-960-045-67-79, e-mail: zizi97@mail.ru The review summarizes the information concerning the endocrine system functional state […]