1. National Center for Natural Products Research; School of Pharmacy; University of Mississippi; Oxford MS 38677 USA
2. Department of Pharmacognosy; Faculty of Pharmacy; University of Alexandria; Alexandria Egypt
3. Department of Pharmacognosy; Faculty of Pharmacy; Minia University; Minia Egypt
4. Waters Corporation; Milford MA 01757 USA
5. Department of Pharmaceutics and Drug Delivery; School of Pharmacy; University of Mississippi; Oxford MS 38677 USA
6. Division of Pharmacognosy; Department of BioMolecular Science; School of Pharmacy; University of Mississippi; Oxford MS 38677 USA
7. Department of Pharmacognosy; College of Pharmacy; King Saud University; Riyadh Saudi Arabia