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Devane, Declan, Joan G. Lalor, Sean Daly, William McGuire, Anna Cuthbert, ja Valerie Smith. "Cardiotocography Versus Intermittent Auscultation of Fetal Heart On Admission to Labour Ward for Assessment of Fetal Wellbeing." Cochrane Database Syst Rev 2017.

Devane, Declan, et al. "Cardiotocography Versus Intermittent Auscultation of Fetal Heart On Admission to Labour Ward for Assessment of Fetal Wellbeing." Cochrane Database Syst Rev 2017.