1 Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA 02115, USA; Harvard TH Chan School of Public Health, Boston, MA, USA. Electronic address: vikram_patel@hms.harvard.edu.
2 Harvard TH Chan School of Public Health, Boston, MA, USA.
3 Global Mental Health Peer Network, Johannesburg, South Africa; Movement for Global Mental Health, Johannesburg, South Africa.
4 Centre for Global Mental Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Alan J Flisher Centre for Public Mental Health, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.
5 Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK.