IncidencePostoperative ComplicationsRetrospective StudiesInfant, NewbornRisk FactorsTreatment OutcomeProspective StudiesTime FactorsCohort StudiesFollow-Up StudiesAge DistributionRegistriesSex DistributionPrevalenceUnited StatesNeoplasmsPopulation SurveillanceRisk AssessmentJapanPoisson DistributionPregnancySeasonsRiskSurvival RateSwedenPrognosisRecurrenceProportional Hazards ModelsEnglandSurvival AnalysisMinnesotaSEER ProgramDouble-Blind MethodBreast NeoplasmsEpidemiologic MethodsModels, StatisticalRegression AnalysisMultivariate AnalysisDenmarkCase-Control StudiesFranceGreat BritainConfidence IntervalsAcute DiseaseNetherlandsLogistic ModelsLongitudinal StudiesIndiaEuropean Continental Ancestry GroupSeverity of Illness IndexCarcinogensChinaOdds RatioHospitalizationHIV InfectionsMass ScreeningSkin Neoplasms