1. Department of Veterinary Medicine University of Milan Lodi Italy
2. Department of Clinical Sciences and Community Health, Laboratory of Medical Statistics, Biometry and Epidemiology “G.A. Maccacaro” University of Milan Milan Italy
3. Department of Veterinary Sciences University of Turin Grugliasco Italy
4. MYLAV La Vallonea Veterinary Diagnostic Laboratory Rho MI Italy
5. Batt Laboratories University of Warwick Coventry United Kingdom
6. Department of Veterinary Medical Sciences University of Bologna Bologna Italy
7. IDEXX Laboratories Milano Italy
8. Department of Clinical Sciences, Veterinary Faculty Utrecht University Utrecht The Netherlands