1. Department of Global Health, University of Washington, Seattle;
2. Department of Paediatrics and Child Health, University of Nairobi, Nairobi, Kenya;
3. Kenyatta National Hospital, Nairobi, Kenya;
4. Department of Psychiatry, Makerere University College of Health Sciences, Kampala, Uganda;
5. Departments of Psychiatry and of Neurology & Ophthalmology, Michigan State University, East Lansing and Department of Psychiatry, University of Michigan, Ann Arbor, MI;
6. Department of Medicine, University of Washington, Seattle;
7. Department of Pediatrics, University of Washington, Seattle; and
8. Department of Epidemiology, University of Washington, Seattle.