no CEA) (HR of 0.73 (95% CI 0.51 to 1.05)), but this did not reach statistical significance [ 12 ].
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An Evidence-Based Guideline for Surveillance of Patients after Curative Treatment for Colon and Rectal Cancer.
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showed a trend toward improved survival with CEA (vs. no CEA) (HR of 0.73 (95% CI 0.51 to 1.05)), but this did not reach statistical significance [ 12 ].