1. Department of Dermatology, Venereology and Paediatric Dermatology; Medical University of Lublin; Lublin Poland
2. Department of Clinical Pathomorphology; Medical University of Lublin; Lublin Poland
3. Department of Allergology and Pneumonology; Rabka-Zdroj Branch of the National Research Institute of Tuberculosis and Pulmonary Diseases; Rabka-Zdroj Poland
4. Department of Pediatrics, Division of Allergy; Prof. Antoni Gebala Children's Hospital of Lublin; Lublin Poland
5. Department of Dermatology; University of Rome " G.Marconi"; Rome Italy