American Journal of Obstetrics and Gynecology · 2008 · 23 citations · 9 references
Cervicovaginal SpecimensFetal FibronectinNonspeculum CollectionHistopathologyDiagnosisPathologyGynecologyObstetricsPrenatal DiagnosisPrenatal TestingMedicineCytopathology
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Statistical Methods for Rates and Proportions.
B. S. Everitt, J. L. Fleiss · Biometrics · 1981 · 9.1K citations
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