4Benavides SH, Morgante PE, Monserrat A J, et al. The pigment of melanosis coli:a lectin histochemical study. Gastrointest Endosc, 1997,46(2) :131 - 138.
5Krbaveie A,Pecar S,Schara M,et al. Anthranoid free radicals found in pseudomelanosis eoli. Phannazie, 1998,53 (5) :336 - 338.
6Byers RJ, Marsh P, Parkinson D, et al. Melanosis eoli is associated with an increase in colonic epithelial apoptosis and not with laxative use. Histopathology,1997,30(2) :160 - 164.
7Nusko G, Schneider B, Ernst H, et al. Melanosis coli-a harmless pigmentation or a precancerous condition ? Z Gastrcenterol, 1997,35(5) :313 -318.
8Nusko G,Schneider B,Schneider I, et al. Anthranold laxative use is not a risk factor for colorectal neoplasia : results of a prospective case control study. Gut,2002,46(5) :651 -655.
