1. Faculty of Pharmacy, Department of Pharmacognosy, Alexandria University, Alexandria, Egypt
2. Natural Center for Natural Products Research, University of Mississippi, Oxford, MS, USA
3. Faculty of Pharmacy, Department of Pharmacognosy, Minia University, Minia, Egypt
4. Department of Pharmaceutics, School of Pharmacy, University of Mississippi, Oxford, MS, USA
5. Pharmaceutical & Fermentation Industries Development Center (PFIDC) City, Scientific Research & Technology Applications (SRTA-City), Alexandria, Egypt