@article{:/content/journals/10.22233/20412495.090108.14, author = "Warman, Sheena and Kinnard, Denise", title = "How to…", journal = "BSAVA Companion", year = "2008", volume = "2008", number = "Student Companion", eid = , pages = "14-16", url = "https://www.bsavalibrary.com/content/journals/10.22233/20412495.090108.14", doi = "https://doi.org/10.22233/20412495.090108.14" }