1. Pharmacognosy Department, College of Pharmacy, Cairo University, Kasr El Aini St., 11562 Cairo, Egypt
2. Chemistry Department, School of Sciences & Engineering, The American University in Cairo, New Cairo 11835, Egypt
3. Department of Pharmacognosy, Faculty of Pharmacy, Kafr Elsheikh University, Kafr El-sheikh, Egypt
4. Pharmacognosy Department, College of Pharmacy, Tanta University, Elguish street (Medical Campus), Tanta 31527, Egypt