tokens: Rheumatoid arthritis ( RA ) is a chronic autoimmune inflammatory disease in which unknown arthrogenic autoantigen is presented to CD4 + T cells .
folded_tokens: rheumatoid arthritis ( ra ) is a chronic autoimmune inflammatory disease in which unknown arthrogenic autoantigen is presented to cd4 + t cells .
labels: B-other_name I-other_name O B-other_name O O O B-other_name I-other_name I-other_name I-other_name O O O B-protein_molecule I-protein_molecule O O O B-protein_molecule O O O O