1. Dipartimento di Patologia Animale, Facoltà di Medicina Veterinaria, Università degli Studi di Torino, Grugliasco, Italy
2. Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
3. Wheat Ridge Veterinary Specialists, Wheat Ridge Veterinary Hospital, Wheat Ridge, CO, USA