No abstract available
MeSH terms
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Aged
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Blood Donors*
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Comorbidity
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Female
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Hepatitis B / diagnosis*
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Hepatitis B / epidemiology*
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Hepatitis B Surface Antigens / blood
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Hepatitis C / diagnosis*
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Hepatitis C / epidemiology*
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Hepatitis C Antibodies / blood
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Humans
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Male
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Middle Aged
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Nigeria / epidemiology
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Seroepidemiologic Studies
Substances
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Hepatitis B Surface Antigens
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Hepatitis C Antibodies