1. Penn State Hershey Eye Center, Penn State College of Medicine, Hershey, Pennsylvania, United States
2. Institut de Recerca Hospital Universitari Vall d'Hebron (VHIR), Barcelona, Spain
3. Instituto de Salud Carlos III (CIBERDEM), Barcelona, Spain
4. University of Technology, Sydney Australia
5. Proteomics and Mass Spectrometry Core Facility, Penn State University, Pennsylvania, United States
6. Kellogg Eye Center, University of Michigan Medical School, Ann Arbor, Michigan, United States