Affiliation: | aLaboratory of Neuro Imaging, Brain Mapping Division, Department of Neurology, UCLA School of Medicine, Los Angeles, CA 90095, USA;bCentre for Magnetic Resonance, University of Queensland, Brisbane, QLD 4072, Australia;cGlaxoSmithKline Pharmaceuticals plc, Addenbrooke’s Centre for Clinical Investigation, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 2GG, UK |