1 London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. Electronic address: [email protected].
2 London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; South London and the Maudsley NHS Trust, London, UK.
3 London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
4 London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; World Bank, Kampala, Uganda.