<Dl> <Dd> <Table> Typical recognition markers for lymphocytes <Tr> <Th> Class </Th> <Th> Function </Th> <Th> Proportion </Th> <Th> Phenotypic marker (s) </Th> </Tr> <Tr> <Th> Natural killer cells </Th> <Td> Lysis of virally infected cells and tumour cells </Td> <Td> 7% (2--13%) </Td> <Td> CD16 CD56 but not CD3 </Td> </Tr> <Tr> <Th> T helper cells </Th> <Td> Release cytokines and growth factors that regulate other immune cells </Td> <Td> 46% (28--59%) </Td> <Td> TCR αβ, CD3 and CD4 </Td> </Tr> <Tr> <Th> Cytotoxic T cells </Th> <Td> Lysis of virally infected cells, tumour cells and allografts </Td> <Td> 19% (13--32%) </Td> <Td> TCR αβ, CD3 and CD8 </Td> </Tr> <Tr> <Th> Gamma delta T cells </Th> <Td> Immunoregulation and cytotoxicity </Td> <Td> 5% (2--8%) </Td> <Td> TCR γδ and CD3 </Td> </Tr> <Tr> <Th> B cells </Th> <Td> Secretion of antibodies </Td> <Td> 23% (18--47%) </Td> <Td> MHC class II, CD19 and CD20 </Td> </Tr> </Table> </Dd> </Dl> <Dd> <Table> Typical recognition markers for lymphocytes <Tr> <Th> Class </Th> <Th> Function </Th> <Th> Proportion </Th> <Th> Phenotypic marker (s) </Th> </Tr> <Tr> <Th> Natural killer cells </Th> <Td> Lysis of virally infected cells and tumour cells </Td> <Td> 7% (2--13%) </Td> <Td> CD16 CD56 but not CD3 </Td> </Tr> <Tr> <Th> T helper cells </Th> <Td> Release cytokines and growth factors that regulate other immune cells </Td> <Td> 46% (28--59%) </Td> <Td> TCR αβ, CD3 and CD4 </Td> </Tr> <Tr> <Th> Cytotoxic T cells </Th> <Td> Lysis of virally infected cells, tumour cells and allografts </Td> <Td> 19% (13--32%) </Td> <Td> TCR αβ, CD3 and CD8 </Td> </Tr> <Tr> <Th> Gamma delta T cells </Th> <Td> Immunoregulation and cytotoxicity </Td> <Td> 5% (2--8%) </Td> <Td> TCR γδ and CD3 </Td> </Tr> <Tr> <Th> B cells </Th> <Td> Secretion of antibodies </Td> <Td> 23% (18--47%) </Td> <Td> MHC class II, CD19 and CD20 </Td> </Tr> </Table> </Dd> <Table> Typical recognition markers for lymphocytes <Tr> <Th> Class </Th> <Th> Function </Th> <Th> Proportion </Th> <Th> Phenotypic marker (s) </Th> </Tr> <Tr> <Th> Natural killer cells </Th> <Td> Lysis of virally infected cells and tumour cells </Td> <Td> 7% (2--13%) </Td> <Td> CD16 CD56 but not CD3 </Td> </Tr> <Tr> <Th> T helper cells </Th> <Td> Release cytokines and growth factors that regulate other immune cells </Td> <Td> 46% (28--59%) </Td> <Td> TCR αβ, CD3 and CD4 </Td> </Tr> <Tr> <Th> Cytotoxic T cells </Th> <Td> Lysis of virally infected cells, tumour cells and allografts </Td> <Td> 19% (13--32%) </Td> <Td> TCR αβ, CD3 and CD8 </Td> </Tr> <Tr> <Th> Gamma delta T cells </Th> <Td> Immunoregulation and cytotoxicity </Td> <Td> 5% (2--8%) </Td> <Td> TCR γδ and CD3 </Td> </Tr> <Tr> <Th> B cells </Th> <Td> Secretion of antibodies </Td> <Td> 23% (18--47%) </Td> <Td> MHC class II, CD19 and CD20 </Td> </Tr> </Table> <Tr> <Th> Class </Th> <Th> Function </Th> <Th> Proportion </Th> <Th> Phenotypic marker (s) </Th> </Tr>

Are there more b cells or t cells in the body
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