Calitri C, Gabiano C, Galli L, Chiappini E, Giaquinto C, Buffolano W, Genovese O, Esposito S, Bernardi S, de Martino M, Tovo P-A. The second generation of HIV-1 vertically exposed infants: a case series from the Italian Register for paediatric HIV infection. BMC Infect Dis 2014;14:277.