Algorithms|Biomarkers, Tumor|Breast Neoplasms|Calibration|Computational Biology|Computer Simulation|Confidence Intervals|Data Interpretation, Statistical|Enzyme-Linked Immunosorbent Assay|Evaluation Studies as Topic|Gene Expression Profiling|Humans|Logistic Models|Models, Statistical|Oligonucleotide Array Sequence Analysis|Pattern Recognition, Automated|Reproducibility of Results|Research Design|Sequence Alignment|Sequence Analysis, DNA|Sequence Analysis, Protein