Associations between HLA class II antigens and autoantibodies to the ribonucleoproteins Ro ( SSA ) and La ( SSB ) have been reported in these patients .
associations between hla class ii antigens and autoantibodies to the ribonucleoproteins ro ( ssa ) and la ( ssb ) have been reported in these patients .
O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O B-protein_family_or_group B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O O O O O O