Epidemiological surveillance of West Nile neuroinvasive diseases in Italy, 2008 to 2011 - Rizzo, C; Salcuni, P; Nicoletti, L; Ciufolini, MG; Russo, F; Masala, R; Frongia, O; Finarelli, AC; Gramegna, M; Gallo, L; Pompa, MG; Rezza, G; Salmaso, S; Declich, S (Euro Surveill, 2012)