| http://www.w3.org/ns/prov#value | - The lump indicates that the antigen has been injected at the correct depth.The injection site is labeled and examined 3 days, and again 28 days, later to see if there is a reaction.How to Prepare for the TestPeople with dermatitis or other skin irritations should have the test performed on an unaffected part of the body.If your child is to have this test performed, it may be helpful to explain how
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