1. Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Isernia, Italy
2. Department of Immunohematology and Transfusion Medicine, Hospital Papa Giovanni XXIII, Bergamo, Italy
3. School of Medicine, University of Milan Bicocca, Monza, Italy
4. Department of Medicine and Surgery, Research Center in Epidemiology and Preventive Medicine (EPIMED), University of Insubria, Varese, Italy