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      <marc:subfield code="a">The role of surrogate markers of HIV infection / </marc:subfield>
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      <marc:subfield code="a">Contents: Introduction.--Pathophysiology.--Serologic T cell activation markers.--Serologic B cell activation markers.--Antibodies to HIV.--Other antibodies.--Other serologic markers.--Antigen markers.--Cell surface T cell activation markers.--CD4+ T cells.--Discussion and recommendations.--Glossary.--References.</marc:subfield>
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