Purebred DogHealth Survey for the Welsh Corgi Pembroke breed (PDF). Kennel Club. 2004 [10 April 2016]. (原始内容存档 (PDF)于2018-06-20). Stanley Coren's dog intelligence
時,髕骨在股骨的凹槽中滑動。膝蓋骨向腿的内側或外側移位,就會造成髕骨脫位。 Summary results of the Purebred DogHealth Survey for French Bulldogs (PDF). Kennel Club/ British Small Animal Veterinary