A.N. ZAVYALOVA, A.V. GOSTIMSKY, V.N. FEDORETS Saint Petersburg State Pediatric Medical University of the Ministry of Healthcare of the Russian Federation, Saint Petersburg Contact details: Zavyalova A.N. — Ph. D. (medicine), Associate Professor of the Department of General Medical Practice, nutritionist Address: 2 Litovskaya St., Saint Petersburg, Russian Federation, 194100, tel.: +7-921-398-59-55, е-mail: anzavjalova@mail.ru   The […]