1. Barkagan Z.S., Momot A.P. Fundamentals diagnosis of he-mostasis. Moscow, N'jumed Publ., 2003. 224 p. (in Russian).
2. Borovikov V. Statistica: the art of data analysis on the com-puter. St. Petersburg, Piter Publ., 2001. 656 p. (in Russian).
3. Girkalo M.V. Gemokoagulyatsionnyh prevention of compli-cations in total hip arthroplasty. Author. dis. cand. med. sci. Saratov, 2007. 27 p. (in Russian).
4. Denisov A.O. Gemokoagulyatsionnyh prevention of compli-cations in total hip arthroplasty. Author. dis. cand. med. sci. St. Petersburg, 2010. 26 p. (in Russian).
5. Ezhevskaya A.A., Zagrekov V.I. Regional anesthesia and treatment of acute pain, 2008, vol. 2, no. 1, pp. 33–41 (in Russian).