No abstract available
MeSH terms
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Animals
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Biological Evolution*
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Humans
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Immunity*
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Ligands
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Mice
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Rats
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Receptors, Immunologic / genetics*
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Selection, Genetic
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Sequence Homology, Amino Acid
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Species Specificity
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Viral Proteins / genetics
Substances
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Ligands
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Receptors, Immunologic
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Viral Proteins