Ruth Dennis, MA, VetMB, DVR, DipECVDI, MRCVS, Animal Health Trust, Newmarket, UK; Robert M. Kirberger, BVSc, MMedVet(Rad), DipECVDI, Onderstepoort Veterinary Academic Hospital, University of Pretoria, South Africa
Frances Barr, MA, VetMB, PhD, DVR, DipECVDI, MRCVS, School of Veterinary Science, University of Bristol, Bristol, UK
Robert H. Wrigley, BVSc, MS, DVR, DipACVR, DipECVDI, MRCVS, University Veterinary Teaching Hospital, University of Sydney, Australia