1. Department of Pharmaceutical Sciences University of Michigan Ann Arbor MI 48109 USA
2. Department of Chemistry University of Michigan Ann Arbor MI 48109 USA
3. Division of Quantitative Methods and Modeling, Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research US Food and Drug Administration Silver Spring Maryland 20993 USA
4. Department of Psychiatry University of Michigan Medical School Ann Arbor 48109 USA
5. Department of Clinical Pharmacy University of Michigan Ann Arbor MI 48109 USA