1. From the Departments of Ophthalmology and2Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; and the
2. Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; and the
3. The Rotterdam Eye Hospital and Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands.
4. From the Departments of Ophthalmology and