@article{:/content/journals/10.22233/20412495.040117.12, author = "Evans, Craig", title = "How to…", journal = "BSAVA Companion", year = "2017", volume = "2017", number = "Suppl_4", eid = , pages = "12-15", url = "https://www.bsavalibrary.com/content/journals/10.22233/20412495.040117.12", doi = "https://doi.org/10.22233/20412495.040117.12" }