1. Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
2. Duke Global Health Institute, Duke University, Durham, North Carolina, USA
3. Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
4. Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
5. Global Program in Respiratory Sciences, Eudowood Division of Pediatric Respiratory Sciences, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA