1. Edificio de Institutos de Investigación; Micros Veterinaria SL. INDEGSAL; León Spain
2. Department of Veterinary Medicine; University of Bari; Valenzano Italy
3. Analitica Veterinaria; Mungia Vizcaya Spain
4. Veterinary Hospital of the University of Leon; León Spain
5. Nanta; FuenteAlamo, Murcia Spain
6. Department of Veterinary Medicine; University of Perugia; Perugia Italy
7. Rumial ADSG; Almeria Spain
8. Facultad de Veterinaria; Universidad de León; Campus de Vegazana; León Spain