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Family MedicinePerinatal HealthInfertilityMedical RecordsFertilityMaternal ComplicationPediatricsMaternal HealthPregnancyPrenatal CareMaternal-fetal MedicinePublic HealthFetal ComplicationMedicinePerinatal FactorsWomen's HealthHigh-risk Pregnancy
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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
A H BECKETT, M ROWLAND, P TURNER · The Lancet · 1965 · 16.9K citations