Inverse association between circulating APRIL levels and serological and clinical disease activity in patients with systemic lupus erythematosus
W Stohl, S Metyas, S-M Tan, G S Cheema, B Oamar, V Roschke, Y Wu, K P Baker, D M Hilbert
Annals of the Rheumatic Diseases Sep 2004, 63 (9) 1096-1103; DOI: 10.1136/ard.2003.018663