(1)
TANG, G. P.-Y.; CHAN, V. Y.-T.; NG, V. K.-S.; LAU, W.-L.; LEUNG, W.-C. Can Intrapartum Ultrasound Assessment of Fetal Spine and Head Position Predict Persistent Occiput Posterior Position at Delivery?. Hong Kong J Gynaecol Obstet Midwifery 2016, 16.