1. Department of Dermatology; Venereology and Paediatric Dermatology; Medical University of Lublin; Lublin Poland
2. Department of Clinical Immunology and Immunotherapy; Medical University of Lublin; Lublin Poland
3. St. John's Cancer Center; Lublin Poland
4. Department of Dermatology; University of Rome G. Marconi; Rome Italy
5. Department of Internal Diseases; Medical University of Lublin; Lublin Poland
6. Dermatologikum Hamburg and SCIderm Research Institute; Hamburg Germany