1. Medical Genetics; University of Siena; Siena Italy
2. Genetica Medica; Azienda Ospedaliera Universitaria Senese; Siena Italy
3. Dipartimento di Pediatria; Ospedale Valdichiana; Montepulciano Italy
4. Department of Molecular Medicine and Surgery; CMM, Karolinska Institutet and Hospital Stockholm; Sweden
5. Manchester Academic Health Sciences Centre; Manchester Biomedical Research Centre; St Mary's Hospital; Manchester United Kingdom
6. CHU Nantes; Service de genetique medicale; Nantes Cedex France
7. Department of Clinical Genetics; Alder Hey Children's Hospital; Liverpool, and Liverpool Women's Hospital; Liverpool United Kingdom
8. Service de Génétique Clinique; Hôpital Jeanne de Flandre; Lille France
9. Institut de Génétique Médicale; Hôpital Jeanne de Flandre; Lille France
10. Unit of Pediatrics and Medical Genetics; IRCCS Associazione Oasi Maria Santissima; Troina Italy
11. Medical Genetics; Institute for Maternal and Child Health IRCCS “Burlo Garofalo”; Trieste Italy
12. Department of Developmental Neuroscience; IRCCS Stella Maris; Calambrone Italy
13. IRCCS Casa Sollievo della Sofferenza Hospital; Mendel Institute; Rome Italy
14. Laboratory of Genetic Diagnosis; IRCCS Associazione Oasi Maria Santissima; Troina Italy
15. Medical Genetics; University of Catania; Catania Italy