A comparison of patients with seropositive and seronegative rheumatoid arthritis.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001168:Arthritis / Q000150:complications; D001171:Arthritis, Juvenile / Q000097:blood; D001172:Arthritis, Rheumatoid / Q000097:blood* / Q000175:diagnosis / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000150:complications; D005260:Female; D006386:Hemagglutination Tests; D006801:Humans; D007841:Latex Fixation Tests; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000097:blood / Q000175:diagnosis; D012217:Rheumatoid Factor / Q000032:analysis*; D013167:Spondylitis, Ankylosing / Q000097:blood / Q000175:diagnosis
D012217:Rheumatoid Factor