morphologically and enzyme histochemically distinguishable tissue macrophages and stromal cells of human reactive lymph nodes were characterized by the cytoplasmic presence of the subunit a of factor xiii and by the expression of surface antigenic determinants reacting with monoclonal antibodies directed against monocyte/macrophage populations ( mo 1 , leu m3 ) and hla-dr antigens .
C0086418
human
C0019764
hla-dr antigens