No abstract available
MeSH terms
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Carcinoembryonic Antigen / analysis*
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Humans
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Liver Neoplasms / immunology*
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Precancerous Conditions / immunology*
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Stomach Neoplasms / immunology*
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alpha-Fetoproteins / analysis*
Substances
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Carcinoembryonic Antigen
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alpha-Fetoproteins