1. V.A. Nasonova Research Institute of Rheumatology
2. V.I. Razumovsky Saratov State Medical University, Ministry of Health of Russia
3. Russian Medical Academy of Continuing Professional Education, Ministry of Health of Russia
4. Kazan State Medical University
5. Agat Medical Center
6. Orenburg State Medical University, Ministry of Health of Russia
7. SANAS Medical Center
8. Voronezh Regional Clinical Hospital One
9. Chelyabinsk Regional Clinical Hospital
10. Institute for Postgraduate Training of Health Professionals, Ministry of Health of the Khabarovsk Territory
11. Kemerovo State Medical Academy
12. Mutual Aid Society of Bechterew's Disease