@incollection{:/content/chapter/10.22233/9781913859008.Ch168, author = "Lhermette, Philip and Robertson, Elise", title = "Canine and feline endoscopy (BSAVA Publications)", booktitle = "BSAVA Congress Proceedings 2021", publisher = "British Small Animal Veterinary Association", year = "2021", url = "https://www.bsavalibrary.com/content/chapter/10.22233/9781913859008.Ch168" }