O.Yu. KARPUKHIN, E.R. KHASANOV, B.Sh. BIKBOV Kazan State Medical University, 49 Butlerov Str., Kazan, Russian Federation, 420012 Karpuknin O.Yu. — D. Med. Sc., Professor of the Department of Surgical Diseases No. 1, tel. (843) 269-00-53, e-mail: oleg_karpukhin@mail.ru Khasanov E.R. — student of Pediatric Faculty, tel. (937) 528-02-59, e-mail: khasael95@gmail.com Bikbov B.Sh. — student of Pediatric […]