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TH cells secrete cytokines for only a short period after they have been activated; the range of cytokines that TH cells secrete after activation chiefly determines their function. Different T-helper cell subpopulations (Th<sub>1</sub> and Th<sub>2</sub> cells) secrete different sets of cytokines.
 
TH cells secrete cytokines for only a short period after they have been activated; the range of cytokines that TH cells secrete after activation chiefly determines their function. Different T-helper cell subpopulations (Th<sub>1</sub> and Th<sub>2</sub> cells) secrete different sets of cytokines.
 
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{{Jim Bee 2007}}
 
[[Category:Lymphocytes|E]]
 
[[Category:Lymphocytes|E]]
    
[[Category:Adaptive Immune System|C]]
 
[[Category:Adaptive Immune System|C]]
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