1. Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
2. Department of Pharmaceutical Technology and Biopharmaceutics, Johannes Gutenberg University Mainz, Staudingerweg 5, 55128 Mainz, Germany
3. Department of Chemistry, The Johns Hopkins University, Baltimore, Maryland 21218, United States
4. Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan 48201, United States
5. Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
6. Division of Pharmaceutical Analysis, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, St. Louis, MO 20903, United States