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Richard A Bickel, MD Chief, Allergy Clinic, Moncrief Army Community Hospital

Richard A Bickel, MD is a member of the following medical societies: American Academy of Allergy Asthma and Immunology, American Academy of Pediatrics, American College of Allergy, Asthma and Immunology

Disclosure: Nothing to disclose.

Cecilia P Mikita, MD, MPH Associate Professor of Pediatrics and Medicine, Uniformed Services University of the Health Sciences; Staff Allergist/Immunologist, Walter Reed National Military Medical Center

Cecilia P Mikita, MD, MPH is a member of the following medical societies: American Academy of Allergy Asthma and Immunology

Disclosure: Nothing to disclose.

Mary L Windle, PharmD Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

David J Valacer, MD, MS Chief Medical Officer, Regor Therapeutics Group

David J Valacer, MD, MS is a member of the following medical societies: American Academy of Allergy Asthma and Immunology, American Academy of Pediatrics, American Association for the Advancement of Science, American College of Allergy, Asthma and Immunology, American Thoracic Society, Asthma and Allergy Foundation of America, New York Academy of Sciences, New York Allergy & Asthma Society

Disclosure: Nothing to disclose.

Harumi Jyonouchi, MD Faculty, Division of Allergy/Immunology and Infectious Diseases, Department of Pediatrics, Saint Peter's University Hospital

Harumi Jyonouchi, MD is a member of the following medical societies: American Academy of Allergy Asthma and Immunology, American Academy of Pediatrics, American Association of Immunologists, American Medical Association, Clinical Immunology Society, New York Academy of Sciences, Society for Experimental Biology and Medicine, Society for Pediatric Research, Society for Mucosal Immunology

Disclosure: Nothing to disclose.

Terry W Chin, MD, PhD Associate Clinical Professor, Department of Pediatrics, University of California, Irvine, School of Medicine; Associate Director, Cystic Fibrosis Center, Attending Staff Physician, Department of Pediatric Pulmonology, Allergy, and Immunology, Memorial Miller Children's Hospital

Terry W Chin, MD, PhD is a member of the following medical societies: American Academy of Allergy Asthma and Immunology, American Association of Immunologists, American College of Allergy, Asthma and Immunology, American College of Chest Physicians, American Federation for Clinical Research, American Thoracic Society, California Society of Allergy, Asthma and Immunology, California Thoracic Society, Clinical Immunology Society, Los Angeles Pediatric Society, Western Society for Pediatric Research

Disclosure: Nothing to disclose.

The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous author Marion Johnson, MD, to the development and writing of this article.

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