1. Department of Veterinary Clinical Sciences; Clinical Pathology and Clinical Pathophysiology; Justus-Liebig-University; Giessen Germany
2. Small Animal Clinic Grußendorf; Bramsche Germany
3. Small Animal Clinic; Nürnberg-Hafen; Germany
4. Small Animal Clinic; Ismaning Germany
5. Small Animal Clinic Norderstedt; Germany
6. AniCura Small Animal Specialists; Ravensburg Germany
7. AniCura Small Animal Specialists; Augsburg Germany
8. IDEXX Laboratories; Portland ME USA