1. Racial group, socioeconomic status, and the development of persistent proteinuria in systemic lupus erythematosus;Hopkinson;Ann Rheum Dis,2000
2. Prognosis in systemic lupus erythematosus. Negative impact of increasing age at onset, black race, and thrombocytopenia, as well as causes of death;Reveille;Arthritis Rheum,1990
3. The prognosis of lupus nephritis in African-Americans: a retrospective analysis;Bakir;Am J Kidney Dis,1994
4. Factors predictive of outcome in severe lupus nephritis. Lupus Nephritis Collaborative Study Group;Korbet;Am J Kidney Dis,2000
5. High-risk features of lupus nephritis: importance of race and clinical and histological factors in 166 patients;Austin;Nephrol Dial Transplant,1995