1. Indiana University Department of Ophthalmology, Indianapolis
2. Jaeb Center for Health Research, Tampa, Florida
3. Duke Eye Center, Durham, North Carolina
4. Eastern Virginia Medical School, Norfolk
5. Texas Children’s Hospital, Houston
6. John A. Moran Eye Center, Salt Lake City, Utah
7. Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
8. Pediatric Ophthalmology Associates Inc, Columbus, Ohio
9. Emory University School of Medicine, Atlanta, Georgia
10. Boston Children’s Hospital, Boston, Massachusetts
11. Dean McGee Eye Institute, University of Oklahoma, Oklahoma City
12. Wilmer Eye Institute, Baltimore, Maryland
13. Smith-Kettlewell Eye Research Institute, San Francisco, California
14. Baylor College of Medicine, Houston, Texas
15. Southern California College of Optometry at Marshall B. Ketchum University, Fullerton,
16. Mayo Clinic, Rochester, Minnesota