the highest portion of anti-ss-b positive sera was observed in the group of patients with systemic lupus erythematosus ( 48 % ) followed by the groups with undifferentiated connective tissue disease ( 17 % ) , sjogren-syndrome ( 13 % ) and rheumatoid arthritis ( 6 % ) .
C1527336
sjogren-syndrome
C0003873
rheumatoid arthritis