A cluster of measles cases in northern Italy: a preliminary report Filia, A and Barale, A and Malaspina, S and Montu, D and Zito, S and Muscat, M and Ciofi Degli Atti, M L, Weekly releases (1997–2007), 12, 3318 (2007), https://doi.org/10.2807/esw.12.48.03318-en