Persistence of interleukin 7 activity and levels on tumour necrosis factor α blockade in patients with rheumatoid arthritis
Joel A G van Roon, Sarita A Y Hartgring, Marion Wenting-van Wijk, Kim M G Jacobs, Paul-Peter Tak, Johannes W J Bijlsma, Floris P J G Lafeber
Annals of the Rheumatic Diseases May 2007, 66 (5) 664-669; DOI: 10.1136/ard.2006.062547
