[46] W.L. Williams in American Veterinary Review, Vol. 21, page 452.
[47] Geo. H. Berns, D.V.S., report, American Veterinary Medical Association, 1912, page 238.
[48] Joseph Hughes, M.R.C.V.S., in the Chicago Veterinary College Quarterly Bulletin, Vol. 10, page 15.
[49] Traite de Therap. Chir. Cadiot et Almy, Tome second, page 480.
[50] E. Wallis Hoare, F.R.C.V.S., American Veterinary Review, Vol. 27, page 1189.
[51] Discussions on paper entitled "The Spavin Group of Lamenesses," by W.L. Williams, Carl W. Fisher and D.H. Udall, Proceedings of American Veterinary Medical Association, 1905.
[52] "Hock-Joint Lameness," by Dr. James McDonough, Proceedings of the A.V.M.A., 1913, page 545.