Algorithms|Biomarkers, Tumor|Breast Neoplasms|Clinical Trials as Topic|Gene Expression Profiling|Gene Expression Regulation, Neoplastic|Genetic Testing|Genetic Variation|Humans|Internet|Leukemia|Lung Neoplasms|Neoplasm Proteins|Oligonucleotide Array Sequence Analysis|Prognosis|Reproducibility of Results|Sample Size|Sensitivity and Specificity|Software|Treatment Outcome