I.M. KAGANTSOV1, N.R. AKRAMOV2 1Republican Children’s Hospital, 116/6 Pushkin St., Syktyvkar, Russian Federation, 167000 2Kazan State Medical University, 49 Butlerov St., Kazan, Russian Federation, 420012 Kagantsov I.M. — Cand. Med. Sc., Head of Urollogy Departent, tel. (8212) 22-98-50, e-mail: ilkagan@rambler.ru Akramov N.R. — D. Med. Sc., Professor of the Department of Children’s Surgery, tel. +7-917-253-77-20, […]