Cells.CD28+HLA DR+/Cells.CD3+CD4+:NFr:Pt:Bld:Qn
cells.cd28+hla dr+/cells.cd3+cd4+:nfr:pt:bld:qn
CD28+HLA DR+ cells/CD3+CD4+ (T4 helper) cells in Blood
cd28+hla dr+ cells/cd3+cd4+ (t4 helper) cells in blood