Gelatt, Kirk N.; MacKay, Edward O. (2004-02-18). "Prevalence of the breed-related glaucomas in pure-bred dogs in North America". Veterinary Ophthalmology. 7 (2). Wiley: 97–111. doi:10.1111/j.1463-5224.2004.04006.x. ISSN1463-5216. PMID14982589.
Witsberger, Tige H.; Villamil, J. Armando; Schultz, Loren G.; Hahn, Allen W.; Cook, James L. (2008-06-15). "Prevalence of and risk factors for hip dysplasia and cranial cruciate ligament deficiency in dogs". Journal of the American Veterinary Medical Association. 232 (12). American Veterinary Medical Association (AVMA): 1818–1824. doi:10.2460/javma.232.12.1818. ISSN0003-1488. PMID18598150.
ecsca.org
Gormish, Denise. "Whats the Difference?". English Cocker Spaniel Club of America. Archived from the original on 21 November 2010. Retrieved 20 November 2010.
Gelatt, Kirk N.; MacKay, Edward O. (2004-02-18). "Prevalence of the breed-related glaucomas in pure-bred dogs in North America". Veterinary Ophthalmology. 7 (2). Wiley: 97–111. doi:10.1111/j.1463-5224.2004.04006.x. ISSN1463-5216. PMID14982589.
Witsberger, Tige H.; Villamil, J. Armando; Schultz, Loren G.; Hahn, Allen W.; Cook, James L. (2008-06-15). "Prevalence of and risk factors for hip dysplasia and cranial cruciate ligament deficiency in dogs". Journal of the American Veterinary Medical Association. 232 (12). American Veterinary Medical Association (AVMA): 1818–1824. doi:10.2460/javma.232.12.1818. ISSN0003-1488. PMID18598150.
Gormish, Denise. "Whats the Difference?". English Cocker Spaniel Club of America. Archived from the original on 21 November 2010. Retrieved 20 November 2010.
Gelatt, Kirk N.; MacKay, Edward O. (2004-02-18). "Prevalence of the breed-related glaucomas in pure-bred dogs in North America". Veterinary Ophthalmology. 7 (2). Wiley: 97–111. doi:10.1111/j.1463-5224.2004.04006.x. ISSN1463-5216. PMID14982589.
Witsberger, Tige H.; Villamil, J. Armando; Schultz, Loren G.; Hahn, Allen W.; Cook, James L. (2008-06-15). "Prevalence of and risk factors for hip dysplasia and cranial cruciate ligament deficiency in dogs". Journal of the American Veterinary Medical Association. 232 (12). American Veterinary Medical Association (AVMA): 1818–1824. doi:10.2460/javma.232.12.1818. ISSN0003-1488. PMID18598150.