[On rheumatoid chronic polyarthritis with negative serologic reactions].
D000367:Age Factors; D001172:Arthritis, Rheumatoid / Q000097:blood*; D002908:Chronic Disease; D005260:Female; D005500:Follow-Up Studies; D006073:Gout / Q000097:blood; D006801:Humans; D008297:Male; D011565:Psoriasis / Q000097:blood; D012213:Rheumatic Fever / Q000097:blood; D012217:Rheumatoid Factor / Q000097:blood*; D012595:Scleroderma, Systemic / Q000097:blood; D012698:Serologic Tests; D012737:Sex Factors; D013167:Spondylitis, Ankylosing / Q000097:blood
D012217:Rheumatoid Factor
Ricerche sulle forme siero-negative di poliartriti croniche di tipo reumatoide.