1. Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
2. Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, Cittadella Universitaria di Cagliari, 09042 Monserrato, Italy
3. Centre Ophtalmologique de l’Odéon, 113 bd Saint Germain, 75006 Paris, France
4. Department of Ophthalmology, Paris VI University, 361 rue Clément Ader, Bâtiment C, 27000 Evreux, France
5. Instituto de Oftalmologia Dr. Gama Pinto, 1150-255 Lisboa, Portugal
6. Ophthalmology Department, Lille Catholic Hospitals, Lille Catholic University, INSERM U1172, 59000 Lille, France
7. Department of Medicine, Surgery, and Pharmacy, Ophthalmology Unit, University of Sassari, 07100 Sassari, Italy
8. Eye Clinic, Department of Experimental and Clinical Medicine, Polytechnic University of Marche, 60121 Ancona, Italy