RT Book, Section SR Electronic(1) A1 Berent, Allyson YR 2017 T1 Introduction to interventional endoscopy: a new way of looking at things T2 BSAVA Congress Proceedings 2017 PB British Small Animal Veterinary Association DO 10.22233/9781910443439.21.3 UL https://www.bsavalibrary.com/content/chapter/10.22233/9781910443439.ch21sec3