1. City clinical hospital № 40, Yekaterinburg, Russian Federation
2. Urals State Medical University, Yekaterinburg Medical Research Center for Prophylaxis and Health Protection in Industrial Workers, Yekaterinburg, Russian Federation
3. North Caucasian Federal Scientific and Clinical Center of the Federal Medical and Biological Agency, Essentuki, Pyatigorsk Medical and Pharmaceutical Institute, a branch of Volgograd State Medical University, Pyatigorsk, Russian Federation
4. North Caucasian Federal Scientific and Clinical Center of the Federal Medical and Biological Agency, Essentuki, Russian Federation
5. Urals State Medical University, Yekaterinburg, Russian Federation