No abstract available
Publication types
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Clinical Trial
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Clinical Trials as Topic
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Colonic Neoplasms / drug therapy
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Esophageal Neoplasms / surgery
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Esophageal Neoplasms / therapy
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Gastrointestinal Neoplasms / therapy*
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Humans
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Levamisole / therapeutic use
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Rectal Neoplasms / drug therapy
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Stomach Neoplasms / therapy