1. Department of Neurology, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA
2. Department of Pediatrics, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA
3. Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA
4. Center for Clinical Studies and Department of Dermatology, McGovern School of Medicine, University of Texas Health Science Center , Houston, Texas , USA
5. Department of Bioengineering, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA
6. Department of Ophthalmology, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA