Biomarkers, Tumor|Computer Simulation|Diagnosis, Computer-Assisted|Gene Expression Profiling|Humans|Lymphoma, Large B-Cell, Diffuse|Models, Biological|Models, Statistical|Neoplasm Proteins|Oligonucleotide Array Sequence Analysis|Prevalence|Proportional Hazards Models|Regression Analysis|Reproducibility of Results|Risk Assessment|Risk Factors|Sample Size|Sensitivity and Specificity|Survival Analysis|Survival Rate