4Hochberg M C. Updating the american college of rheumatology revised criteria for the classification of systemic lupus erythematosus[ J]. Arthritis Rheum, 1997, 40 : 1725.
5Gladman D D, Urowitz M B, Kagal A, et al. Accurately describing changes in disease activity in systemic lupus erythematosus [ J ]. J Rheumatol, 2000,27 : 377.
