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Univariate disease-free survival (DFS) analysis of clinical, biological, and genetic features of locally advanced rectal cancer patients which were selected for multivariate analysis (p < 0.05): carcinoembryonic antigen (CEA) serum levels, lymph node involvement, and abnormalities in the 4q, 15q11.1, 15q14, and 17q21.31 chromosomal regions. DFS information was available from 36 cases with a type of resection R0.
