1 Department of Obstetrics and Gynaecology, Division of Maternal-Fetal Medicine, National University Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address: pradip_dashraath@nuhs.edu.sg.
2 Department of Obstetrics and Gynaecology, Division of Maternal-Fetal Medicine, National University Hospital, Singapore.
3 Department of Medicine, Division of Endocrinology, National University Hospital, Singapore.
4 Department of Obstetrics and Gynaecology, Division of Maternal-Fetal Medicine, National University Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
5 Department of Medicine, Division of Endocrinology, National University Hospital, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore.