1. Department of Ophthalmology; Aalborg University Hospital; Aalborg Denmark
2. Unit for Psychiatric Research; Aalborg University Hospital, Psychiatry; Aalborg Denmark
3. Department of Clinical Medicine; Aalborg University; Aalborg Denmark
4. Department of Veterans Affairs Hospital; Iowa City Veterans Affairs Center for Prevention of Visual Loss; Iowa City IA USA
5. Department of Ophthalmology and Visual Science; University of Iowa Hospitals and Clinics and Veterans Administration Hospitals; Iowa City IA USA