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Effects of Referral Bias on Surgical Outcomes: A Population-Based Study of Surgical Patients 90 Years of Age or Older

Family MedicinePopulation-based StudyGeriatricsPatient SafetyPerioperative SafetyReferral BiasOutcomes ResearchPostoperative ConsiderationSurgerySurgical SpecialtyMedicineHealth Services ResearchSurgical CareSurgical Patients 90