1. Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, and
2. Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York;
3. Departments of Environmental Health Sciences,
4. Division of Pediatric Pulmonology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire; and
5. Data Coordinating Center, Mailman School of Public Health, Columbia University, New York, New York;
6. Institute for Social and Economic Research and Policy, Columbia University, New York, New York;
7. Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York
8. Epidemiology, and