RT Book, Section SR Electronic(1) A1 Perry, Andrew YR 2017 T1 The art of the scale and polish T2 BSAVA Congress Proceedings 2017 PB British Small Animal Veterinary Association DO 10.22233/9781910443439.32.3 UL https://www.bsavalibrary.com/content/chapter/10.22233/9781910443439.ch32sec3