In the article Quantification of Plasma β-Catenin mRNA in Colorectal Cancer and Adenoma Patients in the March 1, 2004 issue of Clinical Cancer Research, in the confirmatory experiment, 15 colorectal carcinoma patients and 17 colorectal adenoma patients were from a separate cohort of patients recruited from January 2001 to April 2001.

Chuen S, Wong C, Fong S, et al. Quantification of plasma β-catenin mRNA in colorectal cancer and adenoma patients. Clin Cancer Res 2004;10:1613–7.