1. Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Malaysia.
2. Department of Veterinary Laboratory Diagnostics, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 Serdang, Malaysia.
3. Department of Biomedical Sciences, Faculty of Medicine and Biomedical Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Malaysia.
4. Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia.