1. University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA (UK)
2. Medicines Discovery & Development, GlaxoSmithKline R&D, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY (UK)
3. Advion BioSystems, 10 Brown Road, Suite 101, Ithaca, NY 14850 (USA)