1. Central Administration of Drug Control, Egyptian Drug Authority (EDA), Giza, Egypt
2. Central Administration of Biological and Innovative Products and Clinical Studies, Egyptian Drug Authority (EDA), Giza, Egypt
3. Developmental Pharmacology and Acute Toxicity Department, National Organization for Drug Control and Research (NODCAR), Giza, Egypt
4. Department of Pharmacology and Toxicology, Faculty of Pharmacy-Cairo University, Cairo, Egypt