Affiliation: | Animal Population Health Institute, Colorado State University, Fort Collins, CO, USA;Veterinary Epidemiology and Economics Research Unit, The University of Reading, School of Agriculture, Policy and Development Earley Gate, P.O. Box 237, Reading RG6 6AR, UK;Department of Ophthalmology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA;The Liphook Equine Hospital, Forest Mere, Liphook, Hampshire GU30 7JG, United Kingdom |