We have recently developed a novel RAR -selective antagonist ( ER27191 ) which prevents RAR activation by retinoids .
we have recently developed a novel rar -selective antagonist ( er27191 ) which prevents rar activation by retinoids .
O O O O O O B-protein_family_or_group O O O B-other_organic_compound O O O B-protein_family_or_group O O O O