1. Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
2. Faculty of Medicine, University of Oslo, Oslo, Norway
3. Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
4. National Centre for Optics, Vision and Eye Care, Faculty of Health and Social Sciences, University College of Southeast Norway, Kongsberg, Norway
5. Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
6. Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States
7. Department of Plastic and Reconstructive Surgery, Oslo University Hospital, Oslo, Norway
8. Department of Maxillofacial Surgery, Oslo University Hospital, Oslo, Norway
9. Department of Ophthalmology, Stavanger University Hospital, Stavanger, Norway