[Letter: Seronegative chronic polyarthritis].
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000097:blood*; D001799:Blood Sedimentation; D005260:Female; D006801:Humans; D012217:Rheumatoid Factor / Q000032:analysis*
D012217:Rheumatoid Factor
Seronegative chronische Polyarthritis