1. Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt, P.O. Box 11837, Cairo 11837, Egypt
2. Department of Pharmaceutics, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia
3. Department of Pharmaceutics, Faculty of Pharmacy, Al-Azhar University, Cairo 11651, Egypt
4. Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, P.O. Box 11562, Cairo 12411, Egypt
5. Department of Pharmacology, Faculty of Pharmacy, The British University in Egypt, P.O. Box 11837, Cairo 11837, Egypt