1. Department of Rheumatology and Clinical Immunology, Voivodeship Hospital No. 5 in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland
2. Department of Internal Medicine Rheumatology and Clinical Immunology, Medical University of Silesia, 40-055 Katowice, Poland
3. Department of Clinical Psychology, Poznan University of Medical Sciences, 61-701 Poznan, Poland