1. Ophthalmology, Hôpitaux Universitaires Genève, Genève, Switzerland
2. Department of Ophthalmology, Klinik für Augenheilkunde, Basel, Switzerland
3. Ophthalmology/Eye Treatment Centre, Whipps Cross University Hospital, London, United Kingdom of Great Britain and Northern Ireland
4. Georgios Panos, Whipps Cross Rd, Leytonstone, London, UK