1. Dipartimento di Medicina Sperimentale; University of Genoa; Genoa Italy
2. Centro di Eccellenza per la Ricerca Biomedica; University of Genoa; Genoa Italy
3. IRCCS AOU San Martino-IST; Genoa Italy
4. Istituto Giannina Gaslini; Genoa Italy
5. Bambino Gesù Children's Hospital; Rome Italy
6. Department of Pediatrics; University of Pavia; Italy
7. Department of Structural Biology; Stanford University School of Medicine; Stanford CA USA
8. Department of Microbiology and Immunology; Stanford University School of Medicine; Stanford CA USA