8Rhea,V,Morgan.Handbook of small animal practice. . 2008
9Pisani G,Millanta F,Lorenzi D,et al.Androgen receptor ex-pressionin normal,hyperplastic and neoplastic hepatoid glandsin the dog. Research in Veterinary Science . 2006
10Vail D M,Withrow S J,Schwarz P D,et al.Perianal adeno-carcinoma in the canine male:a retrospective study of 41 cases. Journal of the American Ani mal Hospital Association . 1990