@article{:/content/journals/10.22233/20412495.0315.16, author = "Harris, Ben", title = "How to…", journal = "BSAVA Companion", year = "2015", volume = "2015", number = "3", eid = , pages = "16-25", url = "https://www.bsavalibrary.com/content/journals/10.22233/20412495.0315.16", doi = "https://doi.org/10.22233/20412495.0315.16" }