No abstract available
MeSH terms
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Hepatitis B / immunology
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Hepatitis B Surface Antigens / analysis*
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Humans
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Immunoenzyme Techniques
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Liver Cirrhosis / diagnosis
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Liver Cirrhosis / metabolism*
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Liver Neoplasms / diagnosis
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Male
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Middle Aged
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Precancerous Conditions / diagnosis
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Ultrasonography
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alpha-Fetoproteins / analysis*
Substances
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Hepatitis B Surface Antigens
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alpha-Fetoproteins