1. School of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
2. School of Public Health, Oregon Health and Science University, Portland, OR 97239, USA
3. Department of Pediatrics, Makerere University, Mulago Hill Road, Kampala P.O. Box 7072, Uganda
4. Department of Pediatrics, Oregon Health and Science University, Portland, OR 97239, USA
5. Uganda-Case Western Research Collaboration, Case Western Reserve University, Cleveland, OH 44106, USA
6. Department of Medicine, Makerere University, Mulago Hill Road, Kampala P.O. Box 7072, Uganda
7. Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
8. Department of Medicine, Oregon Health and Science University, Portland, OR 97239, USA
9. Division of Pulmonary and Critical Care Medicine, Portland VA Medical Center, Portland, OR 97239, USA