tokens: Expression of LMP1 was seen in variable proportions of tumor cells in two cases and EBNA2 was detected in some tumor cells in three other cases .
folded_tokens: expression of lmp1 was seen in variable proportions of tumor cells in two cases and ebna2 was detected in some tumor cells in three other cases .
labels: O O B-protein_molecule O O O O O O B-cell_type I-cell_type O O O O B-protein_molecule O O O O B-cell_type I-cell_type O O O O O