1. Department of Ophthalmology, Pallas Clinic, Aarau, Switzerland.
2. Department of Ophthalmology, University of Bonn, Bonn, Germany.
3. Department of Ophthalmology, Southwest Hospital, Third Military Medical University, Chongqing, China.
4. Department of Ophthalmology, University of São Paulo, São Paulo, Brazil.
5. Department of Ophthalmology, Philipps-University, Marburg, Germany.