1. Division of Thoracic Surgery
2. Division of Pulmonary and Critical Care Medicine, and
3. Pathophysiology Department, School of Medicine, Universidad de la República, Montevideo, Uruguay; and
4. Department of Internal Medicine, Justus Liebig University, Universities of Giessen and Marburg Lung Center, Giessen, Germany
5. Division of Allergy and Immunology, Northwestern University, Chicago, Illinois