1. Post-Graduation School of Haematology, University of Catania, A.O.U. ‘Policlinico-San Marco’, 95123 Catania, Italy
2. Division of Haematology and BMT, A.O.U. ‘Policlinico-San Marco’, 95123 Catania, Italy
3. Division of Haematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy
4. Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, 90127 Palermo, Italy
5. Department of Hematology I, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
6. Haematology Unit, Haemato-Oncology and Radiotherapy Department, Grande Ospedale Metropolitano “Bianchi-Melacrino-Morelli”, 89124 Reggio Calabria, Italy
7. Dipartimento di Specialità Medico-Chirurgiche, CHIRMED, Sezione di Ematologia, Università degli Studi di Catania, 95131 Catania, Italy
8. Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate “G.F.Ingrassia”, University of Catania, 95131 Catania, Italy