Authors: Pamela A Knight; Susan E Griffith; Alan D Pemberton; Judith M Pate; Lauren Guarneri; Katherine Anderson; Richard T Talbot; Sarah Smith; David Waddington; Mark Fell; Alan L Archibald; Stewart T G Burgess; David W Smith; Hugh R P Miller; Ivan W Morrison Journal: Vet Res Date: 2011-06-17 Impact factor: 3.683