Affiliation: | 1. Department of Veterinary Surgery, University of Glasgow Veterinary School, Bearsden Road, Glasgow, G61 1QH;1. Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool Veterinary Teaching Hospital, “Leahurst”, Chester High Road, Neston, South Wirral L64 7TE, U.K.;2. Department of Environmental and Evolutionary Biology, University of Liverpool, PO Box 147, Liverpool L69 3BX, U.K. |