1. Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
2. Department of Microbiology, Faculty of Pharmacy, Alexandria University, P.O. Box 21500, Alexandria 21527, Egypt
3. Department of Pharmaceutics, National Organization for Drug Control and Research, P.O. Box 35521, Giza 12561, Egypt
4. Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, P.O. Box 21500, Alexandria 21527, Egypt