Vishal Bhavsar1, Shuo Zhang2, Dinesh Bhugra3. 1. 1 Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK. 2. 2 London School of Hygiene & Tropical Medicine, London, UK. 3. 3 Department of Health Science and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.