We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePersistence of interleukin 7 activity and levels on tumour necrosis factor blockade in patients with rheumatoid arthritisAuthorsvan Roon, J. A G; Hartgring, S. A Y; Wenting-van Wijk, M.; Jacobs, K. M G; Tak, P.-P.; Bijlsma, J. W J; Lafeber, F. P J GPublicationAnnals of the Rheumatic Diseases, 2007, Vol 66, Issue 5, p664ISSN0003-4967Publication typearticleDOI10.1136/ard.2006.062547