1. Genentech, Inc., South San Francisco, CA, USA
2. Roger and Angie Karalis Johnson Retina Center, University of Washington, Seattle, WA, USA
3. Department of Ophthalmology, School of Medicine, University of Washington, Seattle, WA, USA
4. Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
5. Royal Victoria Hospital (The Belfast Trust), Queens University of Belfast, Belfast, UK