tokens: In addition , a human breast carcinoma cell line ( ZR-75-1 ) , which expresses the progesterone receptor , was analysed throughout .
folded_tokens: in addition , a human breast carcinoma cell line ( zr-75-1 ) , which expresses the progesterone receptor , was analysed throughout .
labels: O O O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O B-cell_line O O O O O B-protein_family_or_group I-protein_family_or_group O O O O O