1 Neuroscience Research Centre, Institute of Cardiovascular and Cell Sciences, St George's, University of London, Cranmer Terrace, London, UK. Electronic address: pgarrard@sgul.ac.uk.
2 Psychiatry Research Group, Department of Clinical Medicine, University of Tromsø, Norway; Norwegian Centre for Integrated Care and Telemedicine (NST), University Hospital of North Norway, Tromsø, Norway. Electronic address: brita@elvevaag.net.