1. Wilmer Ophthalmological Institute, The John Hopkins University, Baltimore, Maryland
2. Pediatric Eye Disease Investigator Group Coordinating Center, Jaeb Center for Health Research, Tampa, Florida
3. Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota
4. Casey Eye Institute, Portland, Oregon
5. currently in private practice, Rockville, Maryland
6. Southern California College of Optometry, Fullerton
7. Pediatric Ophthalmology and Strabismus Associates, Providence, Rhode Island