No abstract available
MeSH terms
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Blood Preservation / methods*
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Blood Preservation / standards
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Disease Progression
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Flow Cytometry / methods
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Flow Cytometry / standards
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HIV Seropositivity / blood
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Humans
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Immunophenotyping / standards
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Lymphocyte Count / instrumentation*
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Lymphocyte Subsets / cytology*
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Reproducibility of Results
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Temperature
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Time Factors