@incollection{:/content/chapter/10.22233/9781905319862.chap1, author = "Nind, Fred and Mosedale, Pam and {en=Contributors}", title = "Authorization and classification", booktitle = "BSAVA Guide to the Use of Veterinary Medicines", publisher = "British Small Animal Veterinary Association", year = "2022", pages = "1-3", url = "https://www.bsavalibrary.com/content/chapter/10.22233/9781905319862.chap1" }