1. Department of Ophthalmology, Habib Thameur hospital, Tunis, Tunisia
2. Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
3. Department of congenital and hereditary diseases, Mongi Slim hospital, La Marsa, Tunis, Tunisia
4. Department of endocrinology and metabolic diseases, National Institute “Zouhair Kallel” of Nutrition, Tunis, Tunisia
5. Department of Medical Genetics, National Center for Mitochondrial Diseases, Nice Teaching Hospital, Nice, France