The Knee · 2015 · 29 citations · 43 references
Randomised Controlled TrialGeneral QuadricepsKinesiologyMuscle InjuryKnee InjuriesMusculoskeletal FunctionRehabilitationOrthopedic BiomechanicsMedicineOrthopaedic SurgeryFirst-time Patellar DislocationPhysical TherapyHealth Sciences
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The Measurement of Observer Agreement for Categorical Data
J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 76.3K citations · Full text
Radiological Assessment of Osteo-Arthrosis
Jan Kellgren, J. S. Lawrence · Annals of the Rheumatic Diseases · 1957 · 12.2K citations · Full text