1. UCD Perinatal Research Center, School of Medicine, National Maternity Hospital, University College Dublin, Dublin, Republic of Ireland
2. Department of Midwifery, National Maternity Hospital, Dublin, Republic of Ireland
3. Department of Dietetics, National Maternity Hospital, Dublin, Republic of Ireland
4. Department of Endocrinology, National Maternity Hospital and Mater Misercordiae Hospital, Dublin, Republic of Ireland