State Budget Educational Institution higher professional education "Saratov State Medical University n.a. V.I. Razumovsky" of the Ministry of Healthcare of Russian Federation based on Clinical Hospital n.a S.R. Mirotvortsev, Saratov, Russian Federation
State Educational Institution of Higher Professional Education "Perm State Medical Academy n.a. academician EA Wagner's "Ministry of Health of the Russian Federation on the basis of Department of Endocrinology Regional Clinical Hospital, Perm, Russian Federation
State Health Care Institution Leningrad Regional Hospital, Saint Petersburg, Russian Federation