1. Istituto Veterinario di Novara; Granozzo Con Monticello Italy
2. Clinica Veterinaria I Ronchi; Gallarate Varese Italy
3. Department of Comparative Biomedicine and Food Science; Veterinary Medicine; University of Padova; Padova Italy
4. Studio Dermatologico Veterinario; Milan Italy
5. Clinic for Small Animal Internal Medicine; University of Zurich; Zurich Switzerland
6. Department of Animal Medicine, Production and Health; University of Padova; Padova Italy