1. Michael Barber Centre for Collaborative Mass Spectrometry, Manchester Institute of Biotechnology, Department of Chemistry, The University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K.
2. Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Macclesfield SK10 2NA, U.K.
3. Chemical Development, Pharmaceutical Technology and Development, Operations, AstraZeneca, Macclesfield SK10 2NA, U.K.