Comparative Effectiveness ResearchUnited States Agency for Healthcare Research and QualityAmerican Recovery and Reinvestment ActPatient Outcome AssessmentPatient-Centered CareUnited StatesPatient Protection and Affordable Care ActObservational Study as TopicElectronic Health RecordsEvidence-Based MedicineResearch DesignTranslational Medical ResearchTherapies, InvestigationalHealth Care ReformObservationResearch Support as TopicOutcome Assessment (Health Care)Randomized Controlled Trials as TopicOutcome and Process Assessment (Health Care)Medical InformaticsOrganizational ObjectivesHealth PolicyDecision MakingPropensity ScoreMedical OncologyInformation DisseminationCost-Benefit AnalysisData CollectionPatient ParticipationDiffusion of InnovationDelivery of Health CareData Interpretation, StatisticalMedicareTreatment OutcomeClinical Trials as TopicNeoplasms