1. Private Augenarztpraxis, Baden-Baden - Germany
2. Department of Ophthalmology, Klinikum Karlsruhe - Germany
3. Department of Ophthalmology, Tel Aviv Sourasky Medical Center (TASMC), Tel Aviv - Israel
4. Department of Ophthalmology, Santa Chiara Hospital, Pisa - Italy
5. Department of Ophthalmology, University of California, Irvine, California - USA