1. Department of Toxicology and Forensic Medicine Faculty of Veterinary Medicine Cairo University Giza Egypt
2. Department of Biochemistry and Molecular Biology Faculty of Veterinary Medicine Cairo University Giza Egypt
3. Department of Pathology Faculty of Veterinary Medicine Cairo University Giza Egypt
4. Department of Forensic Medicine and Toxicology Faculty of Veterinary Medicine University of Sadat City Sadat City Egypt