1. Stem Cell Laboratory and Cell Therapy Center, Istituto Giannina Gaslini, 16148 Genova, Italy
2. Department of Medical Sciences, Laboratory of Immunogenetics, University of Torino, 10126 Torino, Italy
3. CeRMS, University of Torino, 10126 Torino, Italy
4. Department of Medical Sciences, Section of Microbiology, University of Ferrara, 44121 Ferrara, Italy