1. Pharmacognosy Institute and Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States
2. Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois 60612, United States
3. National Center for Natural Products Research and Department of Biomolecular Sciences, Division of Pharmacognosy, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States