the incidence of iga nephritis in primary glomerulonephritis was 38.8 % in japanese and 11.9 % in german cases , and the incidence in mesangial proliferative glomerulonephritis was 65.6 % in japanese and 29.2 % in german patients ( p less than 0.01 ) .
C0027697
nephritis
C0017658
glomerulonephritis