Heredity, environmental conditions, number and type of exposures and emotional factors can indicate a predisposition to allergies.
Last reviewed 6/17/2012 by Stuart I. Henochowicz, MD, FACP, Associate Clinical Professor of Medicine, Division of Allergy, Immunology, and Rheumatology, Georgetown University Medical School. David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
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