in order to improve the accuracy and prognostic value of abh blood group antigen loss in urothelial tumors , the effect of lewis blood type and methodologic factors on detectability and distribution of blood group antigen a in human formalin-fixed , paraplast-embedded urothelium and endothelium was investigated by means of the tween 20-modified indirect immunoperoxidase staining technique .
C1519840
urothelial tumors
C0227598
urothelium