1. Division of Pulmonary and Critical Care Medicine
2. Department of Otorhinolaryngology, QiLu Hospital of Shandong University, Jinan, Shandong, China
3. Division of Asthma Allergy and Immunology, and
4. Division of Rheumatology, Department of Medicine
5. Department of Pediatrics, and
6. Department of Microbiology, University of Virginia Health System, Charlottesville, Virginia; and