twenty-five patients , aged six to 18 years , with lupus nephritis , followed for two to 103 months ( median 22 months ) , have been classified according to renal histology into groups with diffuse proliferative glomerulonephritis ( 18 ) , focal proliferative nephritis ( 2 ) , and membranous nephropathy ( 5 ) .
C0022646
renal
C0027697
nephritis