C. Verdugo, M. Gómez, M. Alvarado-Rybak, H. Bustamante, L. Cardona, and M. Mieres, “Surgical correction of degenerative lumbosacral stenosis in a puma (Puma concolor araucana)”, Arch med vet, vol. 43, no. 3, pp. 303–306, Dec. 2011.