V.N. DIOMIDOVA1, V.S. VINOGRADOVA2 1Ulyanov Chuvash State University, 15 Moskovskiy prospekt, Cheboksary, Russian Federation, 428015 2City Clinical Hospital No. 1, 46 Traktorostroiteley prospekt, Cheboksary, Russian Federation, 428028  Diomidova V.N. — D. Med. Sc., Head of Propedeutics of the Department of Internal Diseases with a course of Radiation Diagnostics, tel. (8352) 45-26-17, e-mail: diomidovavn@rambler.ru Vinogradova V.S. […]