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MedicineOrthopaedic SurgeryOrthopedic SurgeryJoint Replacement SurgeryOrthopedicsOutcomes ResearchHealth Outcomes MeasurementHealthcare Performance MeasurementKnee ArthroplastyOutcome AssessmentOutcome MeasurementPatient-reported OutcomesAdministrative Data IntegrityAdministrative Data SourcesAdministrative Data ValidationOutcome MeasuresSurgical Outcome Assessment
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The Measurement of Observer Agreement for Categorical Data
J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 78.9K citations · Full text
Fundamentals of Biostatistics.
Annals of Internal Medicine · 1969 · 4.6K citations