tokens: Retinoic acid -induced modulation of IL-2 mRNA production and IL-2 receptor expression on T cells .
folded_tokens: retinoic acid -induced modulation of il-2 mrna production and il-2 receptor expression on t cells .
labels: B-other_organic_compound I-other_organic_compound O O O B-protein_molecule O O O B-protein_molecule O O O B-cell_type I-cell_type O