Charité - Universitätsmedizin Berlin Institute of Health Department of Ophthalmology, Berlin, Germany
Fundación Jiménez Díaz, Madrid, Spain
Augenzentrum am St. Franziskus-Hospital Münster, Münster, Germany
Retina Vitreous Associates, Toledo, Ohio, United States
Retina Consultants, Fargo, North Dakota, United States
Tennessee Retina, Nashville, Tennessee, United States
Investigative Site, Warrenton, Virginia, United States
University of Maryland Eye Associates, Baltimore, Maryland, United States
The University of Illinois at Chicago, Chicago, Illinois, United States
Sabates Eye Center Research Division, Leawood, Kansas, United States
University of Kentucky Department of Ophthalmology, Lexington, Kentucky, United States
Cole Eye Institute, Cleveland, Ohio, United States
Ophthalmic Consultants of Boston, Boston, Massachusetts, United States
Kresge Eye Institute, Detroit, Michigan, United States