1. Comparative Epidemiology and Informatics; Bearsden Road Glasgow G61 1QH
2. Department of Veterinary Clinical Studies; University of Glasgow Veterinary School; Bearsden Road Glasgow G61 1QH
3. Warwickshire College; Coventry University; Royal Leamington Spa and Moreton Morrell; Warwick CV35 9BL
4. Department of Statistics and Modelling Science; University of Strathclyde; Glasgow G1 1XW