Ratner M Ia, Stenina I I, Fedorova N D
Klin Med (Mosk). 1999;77(1):30-3.
A highly significant relationship has been established between rapid progression of chronic glomerulonephritis and belonging to unfavorable category of clinical types according to classification of M. Ya. Ratner et al. (chi-square = 84.3, p < 0.001), to unfavorable category of morphological types (chi-square = 13.2, p < 0.01) and the presence of tubulointerstitial changes (chi-square = 32, p < 0.0001).