1. Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, Louisiana 712091;
2. Department of Pharmaceutics and Medical Chemistry, School of Pharmacy, University of the Pacific, Stockton, California 952112;
3. Program for Collaborative Research in the Pharmaceutical Sciences, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 606123; and
4. Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University, Mississippi 386774