1. Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York, USA
2. Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York, USA
3. Division de Salud Communitaria, Fundación Santa Fe de Bogotá, Bogotá, Colombia
4. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA
5. For a Better Bronx, Bronx, New York, USA
6. West Harlem Environmental Action, Inc., New York, New York, USA
7. Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, USA