1. Nguyen QA, Cua DJ, Ng M, Rice DH. Safety of endoscopic sinus surgery in a residency training program. Ear Nose Throat J. 2014; 78: 898-902, 904.

2. Zuckerman JD, Wise SK, Rogers GA, Senior BA, Schlosser RJ, DelGaudio JM. The utility of cadaver dissection in endoscopic sinus surgery training courses. Am J Rhinol Allergy 2013; 23: 218-224.

3. Braun T, Betz CS, Stelter K, Leunig A. FESS and surgical training: what are the problems? Laryngo-Rhino-Otol. 2011; 90: 10-14.

4. Jay H., Hobnailed T. H., Adrian M. The treatment of chronic viral hepatitis // J. Drug Therapy. - 2013. - Vol.336, №5. - P. 347-356.

5. Adilkhodjaev A.A., Yunusov S.Sh. (2015). The features of surgical approach in the tumors in the head of pancreas complicated by mechanical jaundice. «The priorities of the world science: experiments and scientific debate» Proceedings of the VII International scientific conference, North Charleston, SC, USA. Pg. 63-67.

6. Williams E., Beckingham I., Sayed G. et al. (2017). Updated guideline on the management of common bile duct stones (CBDS). Gut. 66(5): 765-782.

7. Bykova V.V. Nekotorye osobennost idiagnostiki ilecheniyanosovyhkrovotechenij. [Some features of the diagnosis and treatment of nosebleeds]Avtorefer. diss. .kand. med.nauk. - Sankt-Peterburg. - 2014. - 22s.

8. Chazova I.E., Mychka V.B. Metabolicheski isindrom. [Metabolic syndrome]–M.: Media Medika. – 2014. – S.161-165

9. Virusnyegepatitysochetannojetiologiiinovyezadachipokontrolyuzaetimiinfekciyami[Viral hepatitis of combined etiology and new tasks to control these infections]/ Shlyahtenko A. I., Mukomolov S. L., Levakova I. A. i dr. // R.Zh.G.G.K. - 2011. - №3. - S. 28-30.

10. Аktual'nye problemy gepatologii: epidemiologiya virusnyh gepatitov [Actual problems of hepatology: the epidemiology of viral hepatitis]/Rakov A. L., Lobzin Yu. V., Gorbakov V. V. i dr. // Pril. k T. 232 «Voen. med. zhurnal» - M.: Voen. Izd., 2015. – s.996.

11. KotovaYu.A., Zujkova A.A., Pashkov A.N. Izmenenie koncentraciikationovcinka v syvorotke krovi u pacientov s dislipidemiejnafonegipertonicheskojbolezni [Change in the concentration of zinc cations in serum in patients with dyslipidemia against the background of hypertension ] // Vrach-aspirant. 2015; 5.1(72): 184-188.

12. Thomas DL, Astemdorski J, Rai RM, et al. The natural history of hepatitis C virus infection: host, viral, and environmental factors. JAMA. 2000; 284(4):450-6. 12. Wasley A, Alter MJ. Epidemiology of hepatitis C: geographic differences and temporal trends. Semin Liver Dis. 2000;20(1):1-16.

13. Kim WR. The burden of hepatitis C in the United States. Hepatology. 2002;36:30-4. Clinical outcomes after hepatitis C infection from contaminated anti-D immune globulin. N Engl J Med. 1999;340(16):1228-33.

14. Wiese M, Berr F, Lafrenz M, et al. Low frequency of cirrhosis in a hepatitis C single- source outbreak in Germany: a 20-year multicenter study. Hepatology. 2000;32(1):91-6.