Inter-centre reliability in embryo grading across several IVF clinics is limited: implications for embryo selection

The Measurement of Observer Agreement for Categorical Data

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An Application of Hierarchical Kappa-type Statistics in the Assessment of Majority Agreement among Multiple Observers

J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 4K citations

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Correlation between standard blastocyst morphology, euploidy and implantation: an observational study in two centers involving 956 screened blastocysts

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