RT Book, Section SR Electronic(1) A1 Gaschen, Lorrie A1 Rodriguez, Daniel YR 2011 T1 Stomach, small and large intestines T2 BSAVA Manual of Canine and Feline Ultrasonography PB British Small Animal Veterinary Association DO 10.22233/9781910443118.11 UL https://www.bsavalibrary.com/content/chapter/10.22233/9781910443118.chap11