A differentiation-associated pattern of BZLF1 expression was observed , BZ1 reacting with nuclei of the upper spinous layer of the lesion .
a differentiation-associated pattern of bzlf1 expression was observed , bz1 reacting with nuclei of the upper spinous layer of the lesion .
O B-other_name I-other_name O B-protein_molecule O O O O B-protein_molecule O O B-cell_component O O B-tissue I-tissue I-tissue O O B-other_name O