No abstract available
MeSH terms
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Animals
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Antibodies, Protozoan / blood*
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Blood Donors*
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Entamoeba histolytica / immunology*
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Entamoebiasis / blood
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Entamoebiasis / epidemiology
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Entamoebiasis / immunology*
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Enzyme-Linked Immunosorbent Assay / methods*
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Hemagglutination Tests / methods*
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Mexico / epidemiology
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Seroepidemiologic Studies