1. Department of Veterinary Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12316, Egypt.
2. Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA.
3. Department of Veterinary Basic Medical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
4. Department of Food Science and Human Nutrition, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA.
5. Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.