1. School of Nursing and Midwifery Trinity College Dublin Dublin Ireland
2. School of Mathematics, Statistics and Applied Mathematics National University of Ireland Galway Ireland
3. Department of Obstetrics and Gynaecology National Maternity Hospital Dublin Ireland
4. Department of Obstetrics School of Medicine Trinity College Dublin Dublin Ireland
5. Department of Obstetrics and Gynaecology Coombe Women and Infants University Hospital Dublin 8 Ireland
6. Department of Neonatology/Paediatrics Coombe Women and Infants University Hospital Dublin 8 Ireland
7. Department of Obstetrics and Gynaecology University College Hospital Galway Galway Ireland
8. Department of Neonatology/Paediatrics University College Hospital Galway Galway Ireland
9. School of Nursing and Midwifery National University of Ireland Galway Ireland
10. Health Research Board Trials Methodology Research Network National University of Ireland Galway Ireland