Immunohistochemistry data showed a trend towards decreasing APC positivity with advancing tumor grade, categorized as 26 % APC-positive among Grade I cases compared to 17.1 % in Grade II and 46.2 % in Grade III.
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Molecular and immunohistochemical study of <i>APC</i> exon 16 and its possible role in colorectal carcinoma development.
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