London School of Economics and Political Science - Care Policy and Evaluation Centre, University of York - Department of Health Sciences, University of Karachi - Department of Economics, University of York, University of Leeds - Leeds Institute of Health Sciences, National Institute of Mental Health and Neurosciences (NIMHANS) - Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS) - Department of Psychiatry, The ARK Foundation, University of York - Department of Health Sciences, King’s College London, The ARK Foundation, Metro North Hospital and Health Service and University of York - Department of Health Sciences