1. Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut-Branch, Assiut, Egypt
2. Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
3. National Center for Natural Products Research, School of Pharmacy, University of Mississippi, Mississippi, USA
4. Department of Pathology, Faculty of Medicine, Minia University, Minia, Egypt