Mathematical ConceptsMathematicsAlgorithmsModels, BiologicalTime FactorsComputer SimulationReproducibility of ResultsImmunoglobulin Variable RegionModels, StatisticalRegression AnalysisProspective StudiesTreatment OutcomeModels, TheoreticalRisk FactorsPredictive Value of TestsRetrospective StudiesPrognosisCommon Variable ImmunodeficiencySensitivity and SpecificityAnalysis of VarianceKineticsLinear ModelsMolecular Sequence DataMultivariate AnalysisFollow-Up StudiesAge FactorsCross-Sectional StudiesSeverity of Illness IndexModels, GeneticLogistic Models