1. Pneumology and Allergy Department, Hospital Sacro Cuore, Gallipoli, Lecce, Italy
2. Department of Dermatology and Allergology Biederstein, Technische Universität München, Munich, Germany
3. Section of Allergy and Clinical Immunology, Dept. of Internal Medicine, University of Bari, Bari, Italy
4. Department of Biomedical Science and Human Oncology, Dermatological Clinic, University of Bari, Bari, Italy
5. Department of Internal Medicine and Clinical Oncology, University of Bari Medical School, Bari, Italy