1. Department of Rheumatology, Systemic Connective Tissue Diseases and Rare Diseases, Central Clinical Hospital MSWiA in Warsaw, Warsaw, Poland
2. Department of Geriatrics, Internal Medicine and Metabolic Bone Diseases, Centre of Postgraduate Medical Education, Warsaw, Poland
3. School of Public Health, Centre of Postgraduate Medical Education, Warsaw, Poland
4. Central Clinical Hospital MSWiA in Warsaw, Warsaw, Poland