Gadalla M A, Wang R, van Wely M, Mol B W J
Women's Health Hospital, Department of Obstetrics and Gynecology, Assiut University, Assiut, Egypt.
Robinson Research Institute, Adelaide Medical School, University of Adelaide, Adelaide, Australia.
Ultrasound Obstet Gynecol. 2018 Jan;51(1):7-9. doi: 10.1002/uog.18969.