We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of rheumatoid factor isotypes on disease activity and severity in patients with rheumatoid arthritis: a comparative study.AuthorsAteş A; Kinikli G; Turgay M; Akay G; Tokgöz GPublicationClinical rheumatology, 2007, Vol 26, Issue 4, p538ISSN0770-3198Publication typearticleDOI10.1007/s10067-006-0343-x