1. Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology , The University of Warmia and Mazury , Olsztyn , Poland
2. Department of Rheumatology , The Municipal Polyclinical Hospital in Olsztyn , Olsztyn , Poland
3. Department of Internal Medicine, School of Medicine, Collegium Medicum , University of Warmia and Mazury , Olsztyn , Poland
4. Department of Dermatology , Wroclaw Medical University , Wroclaw , Poland