1. National Center for Natural Products Research, School of Pharmacy, The University of Mississippi, University, Mississippi 38677, United States
2. Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, The University of Mississippi, University, Mississippi 38677, United States
3. Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 4545, Saudi Arabia
4. Department of Pharmaceutical Sciences and SAMRC Herbal Drugs Research Unit, Tshwane University of Technology, Pretoria 0183, South Africa