tokens: Because cell cycle analysis showed that in PBL from chemically- exposed individuals , between 20-50% of cells were accumulated at the S-G2/M boundaries .
folded_tokens: because cell cycle analysis showed that in pbl from chemically- exposed individuals , between 20-50% of cells were accumulated at the s-g2/m boundaries .
labels: O B-other_name I-other_name O O O O B-cell_type O B-multi_cell B-multi_cell I-multi_cell O O O O O O O O O O O O