tokens: The ZR-75-1 cell line showed an expression of 642 fmol/mg whereas lymphocytes of pregnant women showed an expression < or = 4 fmol/mg .
folded_tokens: the zr-75-1 cell line showed an expression of 642 fmol/mg whereas lymphocytes of pregnant women showed an expression < or = 4 fmol/mg .
labels: O B-cell_line I-cell_line I-cell_line O O O O O O O O O B-multi_cell I-multi_cell O O O O O O O O O