1. Division of Pulmonary and Critical Care, Miller School of Medicine, University of Miami, Miami, Florida
2. Center for Global Non-Communicable Disease Research and Training, School of Medicine, Johns Hopkins University, Baltimore, Maryland
3. Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, Maryland
4. Now with the National Institutes of Health, Bethesda, Maryland
5. UCL Respiratory, University College London, London, United Kingdom
6. Makerere Lung Institute, Makerere University, Kampala, Uganda
7. Department of Statistical Science, University College London, London, United Kingdom
8. CRONICAS Centre of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru
9. Department of Community Medicine, Kathmandu Medical College, Nepal
10. Biomedical Research Unit, A.BPRISMA, Lima, Peru
11. Centro de Investigación del Envejecimiento (CIEN), Facultad de Medicina Humana, Universidad de San Martin de Porres, Lima, Peru
12. Department of Medicine, School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru
13. Centre for Health Economics, University of York, York, United Kingdom
14. Child Health Research Project, Institute of Medicine Tribhuvan University, Kathmandu, Nepal
15. for the GECo Study Investigators