| http://www.w3.org/ns/prov#value | - INTRODUCTIONPrimary eosinophilic gastrointestinal disease (EGID), originally described by Kaijser in 1937[1], is a rare spectrum of gastrointestinal disorders characterized by inflammation rich in eosinophils, without evidence of known causes for eosinophilia, such as parasitic infection, drug reaction, or malignancy[2].
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