1Yoshikawa N, Ito H, Yoshiya K, et al. Henoch-Schonlein nephritis and IgA nephropathy in children. Clin Nephrol, 1987,27 (5) :233.
2Sonmez F, Mir S, Cura A, et al. Clinicopathological correlations of Henoch-Schonlein nephritis in Turkish children. Pediatr Int, 1999,41 (4) :353.
3Cameron JS. Tubular and interstitial factors in the progression of glomerulonephritis. Pediatr Nephrol , 1992,6 (3) :292.
4Wehrmann M, Bohle A, Held H, et al. Long-term prognosis of focal sclerosing glomerulonephritis: an analysis of 250 cases with particular regard to tubulointerstitial changes. Clin Nephrol, 1990,33 (3) :115.
6Smith GC, Winterbom MH, Tayior CM, et al. Assessment of retinolbinding protein excretion in normal children. Pediatr Nephrol,1994,8(2) : 148.
7Muller D, Greve D, Eggert P. Early tubular proteinuria and the development of nephritis in Henoch-Schonlein purpura. Pediatr Nephrol,2000,15( 1 -2) :85.