Lorigados, C. A. B.; Sterman, F. de A.; Pinto, A. C. B. F. Clinic-Radiographic Study of Congenital Atlantoaxial Subluxation in Dogs. Braz. J. Vet. Res. Anim. Sci. 2004, 41 (6), 368-374. https://doi.org/10.1590/S1413-95962004000600002.