LAM, Y.Y. and TO, W.W. 2015. Evaluation of the Accuracy of Prenatal Ultrasound Assessment of Facial Clefts. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery. 15, 1 (Jan. 2015). DOI:https://doi.org/10.12809/hkjgom.15.1.174.