%0 Journal Article %T Sonographic parameters for diagnosing fetal head engagement during labour %A Alexander T Odoi %A Bill Whitehead %A Heather Venables %A Yaw A Wiafe %J Archive of "Ultrasound: Journal of the British Medical Ultrasound Society". %D 2018 %R 10.1177/1742271X18755080 %K Angle of progression %K head¨Cperineum distance %K head¨Csymphysis distance %K engaged fetal head %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810862/