Association of rheumatoid factor and anti-cyclic citrullinated peptide positivity, but not carriage of shared epitope or PTPN22 susceptibility variants, with anti-tumour necrosis factor response in rheumatoid arthritis
C Potter, K L Hyrich, A Tracey, M Lunt, D Plant, D P M Symmons, W Thomson, J Worthington, P Emery, A W Morgan, A G Wilson, J Isaacs, A Barton, BRAGGSS
Annals of the Rheumatic Diseases Jan 2009, 68 (1) 69-74; DOI: 10.1136/ard.2007.084715
