Giuliano, EA; van der Woerdt, A (1 November 1999). "Feline retinal degeneration: clinical experience and new findings (1994-1997)". Journal of the American Animal Hospital Association. 35 (6). American Animal Hospital Association: 511–514. doi:10.5326/15473317-35-6-511. ISSN0587-2871. PMID10580912.
Giuliano, EA; van der Woerdt, A (1 November 1999). "Feline retinal degeneration: clinical experience and new findings (1994-1997)". Journal of the American Animal Hospital Association. 35 (6). American Animal Hospital Association: 511–514. doi:10.5326/15473317-35-6-511. ISSN0587-2871. PMID10580912.
Giuliano, EA; van der Woerdt, A (1 November 1999). "Feline retinal degeneration: clinical experience and new findings (1994-1997)". Journal of the American Animal Hospital Association. 35 (6). American Animal Hospital Association: 511–514. doi:10.5326/15473317-35-6-511. ISSN0587-2871. PMID10580912.