National Institute for Biological Standards and Control, Potters Bar, United Kingdom
Elaine Gray
Institute of Pharmaceutical Science, King's College London, London, United Kingdom
David A. Keire
Division of Pharmaceutical Analysis, Office of Testing and Research, Center for Drug Evaluation and Research, United States Food and Drug Administration, St Louis, MO, United States
Barbara Mulloy
Institute of Pharmaceutical Science, King's College London, London, United Kingdom
Timothy R. Rudd
National Institute for Biological Standards and Control, Potters Bar, United Kingdom