1. First Department of Ophthalmology, G. Gennimatas General Hospital, National and Kapodistrian University of Athens, Athens, Greece
2. Department of Ophthalmology, General Hospital of Patras, University of Patras, Rio, Greece
3. Third Respiratory Medicine Department, Sismanogleio General Hospital, Marousi, Greece
4. Department of Medical Genetics, Medical School, National and Kapodistrian University of Athens, Athens, Greece