Valentine BA.  2006.  Survey of equine cutaneous neoplasia in the Pacific Northwest.. Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc. 18(1):123-6. Abstract
Poulsen KP, Gerard MP, Spaulding KA, Geissler KA, Anderson KL.  2006.  Bilateral renal agenesis in an alpaca cria.. The Canadian veterinary journal. La revue vétérinaire canadienne. 47(2):159-61. Abstract