Letter: Rubella-antibody titres in rheumatoid arthritis.
D000914:Antibodies, Viral / Q000032:analysis*; D001172:Arthritis, Rheumatoid / Q000209:etiology / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D010252:Paramyxoviridae / Q000276:immunology; D012412:Rubella virus / Q000276:immunology*; D014777:Virus Diseases / Q000276:immunology
D000914:Antibodies, Viral