1 Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Cairo University, Cairo, Egypt.
2 Forensic Medicine and Clinical Toxicology, College of Medicine, Princess Nourah bint Abdulrahman Univesity, Riyadh, KSA, P.O.Box 84428-code No 11671, Saudi Arabia.
3 Medical Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt.