1. School and Division of Allergy and Clinical Immunology; Department of Clinical and Expèerimental Medicine; University Hospital “G. Martino”; Messina Italy
2. Institute of Clinical Physiology; IFC CNR; Messina Unit, Messina Italy
3. Division of Hematology; University of Messina; Messina Italy
4. Blood Transfusion Division; Hospital “G. Martino”; Messina Italy
5. Dipartimento Farmaco-Biologico; School of Pharmacy; University of Messina; Messina Italy