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): 1818–1824. doi:10.2460/javma.232.12.1818. ISSN0003-1488.
Airedale Terrier Club of America in collaboration with L. Glickman from the Purdue School of Veterinary Medicine. "Airedale Terrier Health Survey 2000–2001"(PDF). Purdue University. Archived from the original(PDF) on November 30, 2003. Retrieved March 27, 2007.
"Purebred Dog Health Survey". Kennel Club/British Small Animal Veterinary Association Scientific Committee. 2004. Archived from the original on August 13, 2013. Retrieved July 5, 2007.
"Purebred Dog Health Survey". Kennel Club/British Small Animal Veterinary Association Scientific Committee. 2004. Archived from the original on August 13, 2013. Retrieved July 5, 2007.
Airedale Terrier Club of America in collaboration with L. Glickman from the Purdue School of Veterinary Medicine. "Airedale Terrier Health Survey 2000–2001"(PDF). Purdue University. Archived from the original(PDF) on November 30, 2003. Retrieved March 27, 2007.
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): 1818–1824. doi:10.2460/javma.232.12.1818. ISSN0003-1488.