Prof. Leung is the Professor of the Department of Obstetrics and Gynaecology of The Chinese University of Hong Kong, as well as the Head of Fetal Medicine Team, and Assistant Dean of the Medical Faculty of the University. Professor Leung’s research interests and professional expertise are in prenatal screening, diagnosis and therapy of fetal abnormalities, twin pregnancy, preterm delivery, fetal growth restriction, and emergency obstetrics. He has published more than 350 papers in international peer reviewed journals, and his current H-index is 51. He is most well known for his work in maternal circulating cell-free fetal DNA for non-invasive prenatal diagnosis, prenatal genetic diagnosis using chromosomal microarray and now whole genome sequencing, fetal surgical therapy, external cephalic version and shoulder dystocia.