Affiliation: | Department of Pathobiology, Ontario Veterinary College, University of Guelph, 50 Stone Road, Guelph, Ontario, N1G 2W1 Canada;School of Veterinary Medicine, University of Glasgow, Bearsden, Glasgow, G61 1QH, UK;JEH Equine Reproduction Specialists, 1030 Roland Road, PO Box 650, Whitesboro, TX 76273, USA |