1. Department of Natural Sciences, Tennessee Wesleyan University, Athens, TN 37303, United States
2. Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT 84112
3. Division of Medicinal Chemistry & Pharmacognosy, College of Pharmacy, Ohio State University, Columbus, OH 43210
4. Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093-0751
5. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831