Affiliation: | 1. Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore;2. Department of Obstetrics and Gynaecology, National University Hospital, Singapore;3. Department of Psychological Medicine, National University Hospital, Singapore;4. Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore;5. School of Nursing and Midwifery Trinity College, Dublin, Ireland |