Centre for Global Mental Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UKDepartment of Psychiatry, WHO Collaborating Centre for Mental Health Research and Capacity-Building, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, EthiopiaCentre for Innovative Drug Development and Therapeutic Trials for Africa, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia