Division of Psychiatry, University of Edinburgh, University of Edinburgh, University of Bristol - MRC Integrative Epidemiology Unit, Beijing Normal University (BNU) - State Key Laboratory of Cognitive Neuroscience and Learning, University of Edinburgh - Royal Edinburgh Hospital, University of Edinburgh - Royal Edinburgh Hospital, University of Edinburgh, University of Edinburgh, University of Bristol, Boston University, VU University Amsterdam, Erasmus University Rotterdam (EUR) - Erasmus Medical Center (MC), University of Bristol, University of Edinburgh, University of Edinburgh, University of Edinburgh, University of Edinburgh and University of Edinburgh - Edinburgh Medical School