R.R. YAKHIN1,2, L.E. SLAVIN1,2 1Interregional Clinical-Diagnostic Center, 12 a Karbyshev Str., Kazan, Russian Federation, 420101 2Kazan State Medical Academy — Branch Campus of the FSBEI FPE RMACPE MOH Russia, 36 Butlerov Str., Kazan, Russian Federation, 420012  Yakhin R.R. — surgeon of the Surgery Department, post-graduate student of the Department of Endoscopy, General and Endoscopic Surgery, […]