@incollection{:/content/chapter/10.22233/9781905319831.ch2sec38, title = "Endoscopy of the gastrointestinal tract – (b) lower tract", booktitle = "BSAVA Guide to Procedures in Small Animal Practice", publisher = "British Small Animal Veterinary Association", year = "2014", pages = "134-137", url = "https://www.bsavalibrary.com/content/chapter/10.22233/9781905319831.ch2sec38" }