1. Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
2. Department of Cell Biology, Anatomy, and Physiology and
3. Krannert Cardiovascular Research Center, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
4. Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee;
5. U.S. Department of Veterans Affairs Medical Center, Nashville, Tennessee; and