@article{:/content/journals/10.22233/20412495.0220.39, author = "Lewin, Andrew C", title = "Notes on…", journal = "BSAVA Companion", year = "2020", volume = "2020", number = "2", eid = , pages = "39-39", url = "https://www.bsavalibrary.com/content/journals/10.22233/20412495.0220.39", doi = "https://doi.org/10.22233/20412495.0220.39" }