الفهرس 
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Abstract
INTH.ODlJC’fiON AND IMPOH’l’ANCE OF ’fHE STUDY ·- - --------
Allergic disease, which usually appear~
in childhood and is one of the most common reasons for
pediatric visits, can become a life long problem.
Allergy is one of the most common causes of acute and
chronic disease in children. Over 20% of the pediatric
population from birth to 17 years of age are allergic.
Problems related to allergy account for nearly half
of the outpatient visits in a busy pediatric practice.
Allergy is the leading cause of school absenteeism in
the United States, it is one of the main reasons for
physical disability in children and often interferes
with psychosocial development. It creates a serious
social and economic hardships for family { Hein and
Kishorc,l984).
Food allergy is widely perceived by
ttle public as a major health problem. Although the
true incidence of food allergy is unknown, its incidenct~
among children has been variously estimated from 0.3~ to
7 • rJ: ·”oand
the incidence decreases with age. { Buckley arld
Metcalf,l982).