1. Pathology, Drug Safety & Metabolism, IMED Biotech Unit, AstraZeneca, Darwin Building, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire CB4 0WG, U.K.
2. Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Sheffield S1 1WB, U.K.
3. National Centre of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical Laboratory, Teddington TW11 0LW, U.K.
4. Biomolecular Mass Spectrometry Imaging, National Resource for MSI, Science for Life Laboratory, Department of Pharmaceutical Biosciences, Uppsala University, Uppsala 752 37, Sweden
5. Bioscience, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge CB4 0WG, U.K.