Immunopathogenesis of systemic lupus erythematosus nephritis -- BK virus and systemic lupus erythematosus -- Classification of lupus glomerulonephritis (LGN) -- Treatment of lupus nephritis -- End-stage renal disease and systemic lupus erythematosus -- Lupus nephritis in children -- Lupus nephritis in pregnancy -- Drug-induced lupus erythematosus and LN.