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)Health PolicyMedical InformaticsOrganizational ObjectivesDecision MakingPropensity ScoreInformation DisseminationMedical OncologyCost-Benefit AnalysisData CollectionPatient ParticipationDelivery of Health CareDiffusion of InnovationLegislation as TopicMedicareData Interpretation, StatisticalTreatment OutcomeClinical Trials as TopicNeoplasms