Algorithms|Cluster Analysis|Colonic Neoplasms|Data Interpretation, Statistical|Databases, Genetic|Feasibility Studies|Gene Expression|Gene Expression Regulation, Neoplastic|Humans|Leukemia, Myeloid, Acute|Models, Statistical|Oligonucleotide Array Sequence Analysis|Precursor Cell Lymphoblastic Leukemia-Lymphoma|Sensitivity and Specificity|Stochastic Processes