Giuliano E, van der Woerdt A (1999). "Feline retinal degeneration: clinical experience and new findings (1994-1997)". J Am Anim Hosp Assoc. 35 (6): 511–4. doi:10.5326/15473317-35-6-511. PMID10580912.
Bedford, Peter (2006). "Hereditary Retinal Diseases"(PDF). Proceedings of the 31st World Congress of the World Small Animal Veterinary Association. Retrieved 2007-03-10.
Giuliano E, van der Woerdt A (1999). "Feline retinal degeneration: clinical experience and new findings (1994-1997)". J Am Anim Hosp Assoc. 35 (6): 511–4. doi:10.5326/15473317-35-6-511. PMID10580912.
Davidson M, Geoly F, Gilger B, McLellan G, Whitley W (1998). "Retinal degeneration associated with vitamin E deficiency in hunting dogs". J Am Vet Med Assoc. 213 (5): 645–51. PMID9731258.
Petersen-Jones, Simon M. (2003). "Progressive Retinal Atrophy: An Overview". Proceedings of the 28th World Congress of the World Small Animal Veterinary Association. Retrieved 2007-03-10.