1. Department of Molecular Medicine; University of Pavia; Pavia Italy
2. Department of Biotechnology; University of Verona; Verona Italy
3. Department of Medical Sciences; University of Turin; Torino Italy
4. Department of Medical Genetics; The Children's Memorial Health Institute; Warsaw Poland
5. Institute of Medical Genetics; University of Zurich; Zurich Switzerland
6. Pediatrics and Adolescentology Unit, University of Pavia; Fondazione IRCCS Policlinico San Matteo; Pavia Italy
7. Laboratory of Medical Genetics; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico; Milan Italy
8. Cytogenetics Laboratory; Scientific Institute, IRCCS Eugenio Medea; Bosisio Parini Lecco Italy
9. Biomedical Experimental and Clinical Sciences “Mario Serio”; University of Florence; Firenze Italy
10. Laboratory of Genetics; Access to genome P.C.; Thessaloniki Greece
11. Department of Biomedical and Biotechnological Sciences; University of Catania; Catania Italy
12. Department of Genetics; Santa Chiara Hospital; Trento Italy
13. Azienda Ospedaliero-Universitaria Meyer; Firenze Italy
14. Institute of Human Genetics; Jena University Hospital; Jena Germany
15. Department of Cellular and Molecular Medicine; University of Copenhagen; Copenhagen Denmark