@incollection{:/content/chapter/10.22233/9781910443200.chap21, author = "Lewin, Gary", title = "Ocular problems", booktitle = "BSAVA Manual of Canine Practice", publisher = "British Small Animal Veterinary Association", year = "2015", pages = "229-243", url = "https://www.bsavalibrary.com/content/chapter/10.22233/9781910443200.chap21" }