1. Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
2. Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Italy
3. Istituto Veterinario di Novara, Granozzo con Monticello NO, Italy
4. Clinica Veterinaria Nervianese, Nerviano MI, Italy
5. Centro Specialistico Veterinario, Milano, Italy
6. Daniel Koch Small Animal Surgery Referrals, Diessenhofen, Switzerland
7. Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro PD, Italy