DR4/DQ2 haplotype confers susceptibility to T1DM with early clinical disease onset: A retrospective analysis in a tertiary-care hospital in Italy. - Ricci, Silvia; Perugia, Francesca; Piccini, Barbara; Lodi, Lorenzo; Pegoraro, Francesco; Giovannini, Mattia; Rombolà, Giovanni; Perferi, Giancarlo; Toni, Sonia; Azzari, Chiara (PLoS ONE, 2022)