I.S. MALKOV1,3, E.B. BAGAUTDINOV1, A.V. BERDNIKOV2 1Kazan State Medical Academy, 36 Butlerov St., Kazan, Russian Federation, 420012 2Kazan State Technical University named after A.N. Tupolev, 10 Karl Marks St., Kazan, Russian Federation, 420111 3MunicipalClinical Hospital № 7, 54 Chuykov St., Kazan, Russian Federation, 420103  Malkov I.S. — D. Med. Sc., Professor, Head of the Surgery Department, tel. +7-965-594-40-07, e-mail: ismalkov@yahoo.com1,3 Bagautdinov E.B. — […]