1. Research Institute of Rheumatology, NWSMU named after I.I. Mechnikov,Saint-Petersburg,Russian Federation
2. NIIKEL - branch of ICG SB RAS,Laboratory of the connective tissue pathology,Novosibirsk,Russian Federation
3. NIIKEL - branch of ICG SB RAS,Laboratory of Clinical Immunogenetics,Novosibirsk,Russian Federation
4. Saint-Petersburg SBHI, Clinical Rheumatology Hospital No25,Saint-Petersburg,Russian Federation