P1392: INTERIM ANALYSIS OF FIRST IN HUMAN PHASE I-II CLINICAL TRIAL OF EX-VIVO GENE THERAPY FOR HURLER SYNDROME: AN UPDATE AT 3 YEAR FOLLOW-UP oleh Francesca Tucci, Giulia Consiglieri, Chiara Filisetti, Maurizio De Pellegrin, Renata Mellone, Francesca Fumagalli, Silvia Darin, Marina Sarzana, Stefano Scarparo, Francesca Ciotti, Paolo Silvani, Cristina Baldoli, Silvia Pontesilli, Rossella Parini, Giancarlo la Marca, Fabio Ciceri, Luigi Naldini, Alessandro Aiuti, Bernhard Gentner, Maria Ester Bernardo