1. University of Pennsylvania, Philadelphia, Pennsylvania, USA, Department of Paediatric & Adolescent Medicine, Faculty of Medicine, University of Botswana School of Medicine, Gaborone, Botswana, The Children's Hospital of Philadelphia,
Philadelphia, Pennsylvania, USA, Botswana–UPenn Partnership, Gaborone
2. Botswana–UPenn Partnership, Gaborone
3. Botswana's National TB Program, Ministry of Health, Gaborone, Botswana, International Union Against Tuberculosis and Lung Disease, Harare, Zimbabwe