Adult|Aged|Aged, 80 and over|Biomarkers, Tumor|Colorectal Neoplasms|Data Interpretation, Statistical|Diagnosis, Computer-Assisted|Female|Gene Expression Profiling|Genetic Markers|Genetic Predisposition to Disease|Genetic Testing|Humans|Male|Middle Aged|Models, Genetic|Models, Statistical|Neoplasm Proteins|Reproducibility of Results|Sensitivity and Specificity