All allergists are required to be certified by taking an exam
from the American Board of Internal Medicine.
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It is considered a tree nut by most allergists, but it is not an
actual nut.
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When you are dealing with allergies it can always be good to get
an allergists diagnosis. This is because most people who have one
allergy also have others.
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A person who studies immunology is called an immunologist. Some
specific doctors involved with immunology are also called
allergists. Immunologists study the immune system.