1. Department of Ophthalmology, Walter Reed National Military Medical Center, 8901 Wisconsin Avenue, Bethesda MD 20889.
2. Warfighter Refractive Eye Surgery Program and Research Center, Fort Belvoir Community Hospital, 9300 DeWitt Loop, Fort Belvoir, VA 22060.
3. Eyecare Associates, 2715 SW Willetta St. Professional Plaza Suite B, Albany, OR 97321.
4. Retina Group of Washington, 7501 Greenway Center Drive, Greenbelt, MD 20770.
5. Department of Ophthalmology, George Washington University, 2150 Pennsylvania Avenue NW, Suite 2B, Washington, DC 20037.
6. The Wilmer Eye Institute, Green Spring Station, Pavilion II, Suite 455, Baltimore, MD 21093.