1. Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Switzerland
2. Ophthalmology Section, Equine Department, Vetsuisse Faculty, University of Zurich, Switzerland
3. Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Switzerland
4. Image and Data Analysis Group (IDA), Scientific Center for Optical Electron Microscopy (ScopeM), Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
5. Department of Systems Biology, Harvard Medical School, Boston, MA, USA