%0 Journal Article %A Roe, Kirsty %T How to… %D 2011 %J BSAVA Companion %V 2011 %N 9 %P 14-18 %R doi:https://doi.org/10.22233/20412495.0911.14 %U https://www.bsavalibrary.com/content/journals/10.22233/20412495.0911.14