1. From the Department of Medicine and Pediatrics, Penn State University, Hershey Medical Center, Hershey, Pennsylvania;
2. Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts;
3. Division of Rheumatology, Allergy, and Immunology, Department of Medicine, University of California, San Diego, La Jolla, California;
4. BioCryst Pharmaceuticals, Inc., Durham, North Carolina;
5. KJT Group, Inc., Honeoye Falls, New York; and
6. Department of Medicine, Duke University School of Medicine, Durham, North Carolina