1. National Centre
of Excellence in Mass Spectrometry Imaging (NiCE-MSI), National Physical
Laboratory (NPL), Teddington, Middlesex, TW11 0LW, United Kingdom
2. GlaxoSmithKline, Stevenage, United Kingdom
3. University of Nottingham, School of Pharmacy University
Park, Nottingham, NG7 2RD, United Kingdom