[Aberrant crypt foci and cancer of the colorectal junction: the correlation between beta-catenin/Ki-67 expression and the occurrence of early microscopic secondary lesions surrounding periphery colorectal cancer].

[Aberrant crypt foci and cancer of the colorectal junction: the correlation between beta-catenin/Ki-67 expression and the occurrence of early microscopic secondary lesions surrounding periphery colorectal cancer].