Affiliation: | 1 College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, National Guard Health Affairs, P.O. Box 22490, Riyadh 11426, Mail Code 1515, Riyadh, Saudi Arabia;2 King Abdullah International Medical Research Center, King Abdulaziz Medical City, National Guard Health Affairs, Riyadh, Saudi Arabia;3 Department of Obstetrics and Gynaecology, King Abdulaziz Medical City, Riyadh, Saudi Arabia, Riyadh, Saudi Arabia;4 Department of Obstetrics & Gynaecology, University of Auckland, Faculty of Medical and Health Sciences, 11, Private Bag 92019, Grafton, Auckland, New Zealand., Auckland, New Zealand |