RT Book, Section SR Electronic(1) A1 Graham, John P. YR 2015 T1 X-rays in practice: looking at lungs T2 BSAVA Congress Proceedings 2015 PB British Small Animal Veterinary Association DO 10.22233/9781910443521.4.1 UL https://www.bsavalibrary.com/content/chapter/10.22233/9781910443521.ch04sec1