The predictive value of fluctuations in IgM and IgG class anti-dsDNA antibodies for relapses in systemic lupus erythematosus. A prospective long term observation
Hendrika Bootsma, Peter E Spronk, Evert J Ter Borg, Elsje J Hummel, Greetje de Boer, Pieter C Limburg, Cees G M Kallenberg
Annals of the Rheumatic Diseases Nov 1997, 56 (11) 661-666; DOI: 10.1136/ard.56.11.661
