1. Clinical and Medical Science; Lexitas Pharma Services; Durham North Carolina USA
2. Department of Ophthalmology; University of Colorado Anschutz Medical Campus; Aurora Colorado USA
3. The Southern California College of Optometry; Marshall B. Ketchum University; Fullerton California USA
4. School of Optometry & Vision Science; University of Waterloo; Waterloo Canada
5. Indiana University School of Optometry; Bloomington Indiana USA
6. Ophthalmology and Visual Science; Medical College of Wisconsin; Milwaukee Wisconsin USA