CD27 expression on CD4+ T cells differentiates effector from regulatory T cell subsets in the lung.
Mack DG, Lanham AM, Palmer BE, Maier LA, Fontenot AP. CD27 expression on CD4+ T cells differentiates effector from regulatory T cell subsets in the lung. J Immunol. 2009 Jun 01; 182(11):7317-24.