N.P. PASHTAEV1-3, N.A. POZDEEVA1,2, S.G. BODROVA1, M.M. ZARAYSKAYA1, Yu.M. SIDUKOVA1, O.I. TIKHONOVA1 1The Cheboksary Branch of the S. Fyodorov Eye Microsurgery Federal State Institution, 10 Traktorostroiteley Ave., Cheboksary, Russian Federation, 680033 2Doctors’ Improvement Institute of the Ministry of Health of the Russian Federation, 3 Krasnaya Square, Cheboksary, Russian Federation, 428003 3Chuvash State University named after […]