1. Centre Hospitalier Vétérinaire Frégis; Arcueil France
2. Department of Clinical Sciences of Companion Animals; Faculty of Veterinary Medicine; Utrecht University; Utrecht The Netherlands
3. Centre for Clinical Veterinary Medicine; Ludwig-Maximilians-University Germany
4. Tierdermatologie Deisenhofen; Deisenhofen Germany
5. Institute for Veterinary Pathology; Ludwig-Maximilians-University Munich Germany
6. Tierärztliche Klinik für Kleintiere in Düsseldorf; Germany