[1] Allergy and Asthma Medical Group, Research Center, the Department of Pediatrics
[2] Department of Radiology, University of California, San Diego
[3] Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Boston
[4] Department of Otolaryngology, University of Rochester Medical Center, Rochester
[5] Sinus and Nasal Institute of Florida, PA, St Anthony's Carillon Outpatient and Wellness Center, St Petersburg
[6] Department of Otolaryngology, University of Texas Southwestern Medical Center, Dallas
[7] Department of Medicine, George Washington Medical Center, WA
[8] Department of Pediatrics and Pharmacology, University of Colorado Health Sciences, Denver
[9] ENT Clinic, University Hospital, Ghent
[10] Department of Medicine, Asthma and Allergic Diseases Center
[11] Department of Otolaryngology, University of Virginia Health System, Charlottesville
[12] Department of Health Evaluation Science, Penn State College of Medicine, Hershey
[13] Schering-Plough Research Institute, Kenilworth
[14] Division of Sino-nasal Disorder and Allergy, Department of Otolaryngology-Head and Neck Surgery, University of Pittsburgh School of Medicine, Pittsburgh
[15] ENT Department, Academic Medical Centre Hospital, University of Amsterdam, Amsterdam
[16] Clinical Microbiology Laboratories, Mount Sinai Medical Center, NY
[17] Department of Rhinology, University College London, London
[18] Department of Otolaryngology-Head and Neck Surgery, University of Chicago
[19] Nippon Medical School, Tokyo
[20] Department of Otolaryngology, University of Buffalo (The State University of New York)
[21] Department of Medicine, University of Arizona, Phoenix and Tucson, Phoenix
[22] Department of Internal Medicine, St Louis University School of Medicine
[23] Department of Otolaryngology, Weill Cornell Medical College, NY
[24] Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
[25] Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison