About the Authors

Jennifer M. Walsh

Affiliation UCD Obstetrics and Gynaecology, School of Medicine and Medical Science, University College Dublin, National Maternity Hospital, Dublin, Ireland

Ricardo Segurado

Affiliation CSTAR, School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland

Rhona M. Mahony

Affiliation National Maternity Hospital, Dublin, Ireland

Michael E. Foley

Affiliation UCD Obstetrics and Gynaecology, School of Medicine and Medical Science, University College Dublin, National Maternity Hospital, Dublin, Ireland

Fionnuala M. McAuliffe

fionnuala.mcauliffe@ucd.ie

Affiliation UCD Obstetrics and Gynaecology, School of Medicine and Medical Science, University College Dublin, National Maternity Hospital, Dublin, Ireland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JW FMcA. Performed the experiments: JW. Analyzed the data: JW. Contributed reagents/materials/analysis tools: RS. Wrote the paper: JW RS RM MF FMcA.