RT Book, Section SR Electronic(1) A1 Willard, Michael D. YR 2005 T1 Gastrointestinal haemorrhage T2 BSAVA Manual of Canine and Feline Gastroenterology PB British Small Animal Veterinary Association DO 10.22233/9781910443361.11 UL https://www.bsavalibrary.com/content/chapter/10.22233/9781910443361.chap11