Jens Häggström, Clarence Kvart, Kerstin Hansson (1995): Heart sounds and murmurs: changes related to severity of chronic valvular disease in the Cavalier King Charles Spaniel. In: Journal of Veterinary Internal Medicine. Bd. 9, Nr. 2, 1995, ISSN0891-6640, S. 75–85, PMID 7760313, doi:10.1111/j.1939-1676.1995.tb03276.x.
Clare Rusbridge, Susan P. Knowler: Inheritance of occipital bone hypoplasia (Chiari type I malformation) in Cavalier King Charles Spaniels. In: Journal of Veterinary Internal Medicine. Bd. 18, Nr. 5, 2004, S. 673–678, PMID 15515584, doi:10.1111/j.1939-1676.2004.tb02605.x.
Jens Häggström, Clarence Kvart, Kerstin Hansson (1995): Heart sounds and murmurs: changes related to severity of chronic valvular disease in the Cavalier King Charles Spaniel. In: Journal of Veterinary Internal Medicine. Bd. 9, Nr. 2, 1995, ISSN0891-6640, S. 75–85, PMID 7760313, doi:10.1111/j.1939-1676.1995.tb03276.x.
Katheryn C. Wolfe, Roberto Poma: Chiari-like malformation--syringomyelia in the Cavalier King Charles Spaniel. In: Tijdschrift voor diergeneeskunde. Bd. 134, Nr. 18, 2009, ISSN0040-7453, S. 746–750, PMID 19911737.
Clare Rusbridge, Susan P. Knowler: Inheritance of occipital bone hypoplasia (Chiari type I malformation) in Cavalier King Charles Spaniels. In: Journal of Veterinary Internal Medicine. Bd. 18, Nr. 5, 2004, S. 673–678, PMID 15515584, doi:10.1111/j.1939-1676.2004.tb02605.x.
Jens Häggström, Clarence Kvart, Kerstin Hansson (1995): Heart sounds and murmurs: changes related to severity of chronic valvular disease in the Cavalier King Charles Spaniel. In: Journal of Veterinary Internal Medicine. Bd. 9, Nr. 2, 1995, ISSN0891-6640, S. 75–85, PMID 7760313, doi:10.1111/j.1939-1676.1995.tb03276.x.
Katheryn C. Wolfe, Roberto Poma: Chiari-like malformation--syringomyelia in the Cavalier King Charles Spaniel. In: Tijdschrift voor diergeneeskunde. Bd. 134, Nr. 18, 2009, ISSN0040-7453, S. 746–750, PMID 19911737.