CD2 , but not CD3 , cross-linking increased cAMP detected by competitive enzyme-linked immunosorbent assay ( ELISA ) approximately fourfold .
cd2 , but not cd3 , cross-linking increased camp detected by competitive enzyme-linked immunosorbent assay ( elisa ) approximately fourfold .
B-protein_molecule O O O B-protein_molecule O O O B-nucleotide O O B-other_name I-other_name I-other_name I-other_name O B-other_name O O O O