1. Cytogenetics and Reproductive Biology Department, Farhat Hached University Teaching Hospital, Tunisia
2. Paediatric Department, Farhat Hached University Teaching Hospital, Tunisia
3. Tunisian Network on Mental Retardation, Ministry of Higher Education and Research and National Office of Family and Population, Tunisia
4. PRF: Tunisian Network On Mental Retardation: Marie Françoise Ben Dridi, Néji Tebib, Hend Ben Khelifa, Amel Ben Chehida, Habiba Bouhamed Chaabouni, Ridha M’rad, Myriam Chaabouni, Lamia Ben Jemaa, Faouzi Maaloul, Naziha Kaabachi, Haifa Sanhaji, Fahmi Nasrallah, Ali Saad, Hatem Elghezal, Moez Gribaa, Soumaya Mougou, Inesse Ben-Abdallah-Bouhjar, Hela Ben Khelifa, Ramzi Zemni, Foued Haj Salama, Elyes Chabchoub, Amani Achour, Ahmed Sahloul Essoussi, Lamia Boughamoura, Najla Soayah, Jihene Bouguila, Abdelhedi...