RT Journal Article SR Electronic(1) A1 Bradbrook, Carl YR 2017 T1 Ask the expert JF BSAVA Companion VO 2017 IS 6 SP 4 OP 7 DO https://doi.org/10.22233/20412495.0617.4 UL https://www.bsavalibrary.com/content/journals/10.22233/20412495.0617.4