tokens: We had previously shown that the drug undecylprodigiosin ( UP ) blocks human lymphocyte proliferation in vitro .
folded_tokens: we had previously shown that the drug undecylprodigiosin ( up ) blocks human lymphocyte proliferation in vitro .
labels: O O O O O O O B-other_organic_compound O B-other_organic_compound O O B-cell_type I-cell_type O O O O