1. Department of Ophthalmology, University of Pittsburgh Medical Center; Pittsburgh Pennsylvania USA
2. Moorfields Eye Hospital; London UK
3. Vitreous Retina Macula Consultants of New York; New York New York USA
4. LuEsther T. Mertz Retinal Research Center; Manhattan Eye, Ear and Throat Hospital; New York New York USA
5. Rabin Medical Center; Petah-Tikva Israel
6. Doheny Eye Institute; Los Angeles California USA
7. Department of Ophthalmology; David Geffen School of Medicine at University of California Los Angeles; Los Angeles California USA