About the Authors

Oonagh E. Keag

Roles Data curation, Investigation, Methodology, Resources, Software, Validation, Writing – original draft, Writing – review & editing

Affiliation NHS Lothian Department of Obstetrics and Gynaecology, Simpson’s Centre for Reproductive Health, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom

Jane E. Norman

Roles Conceptualization, Investigation, Methodology, Supervision, Validation, Writing – review & editing

Affiliation Tommy’s Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh Queen’s Medical Research Institute, Edinburgh, United Kingdom

Sarah J. Stock

Roles Conceptualization, Formal analysis, Investigation, Methodology, Software, Supervision, Validation, Writing – review & editing

sarah.stock@ed.ac.uk

Affiliations Tommy’s Centre for Maternal and Fetal Health, MRC Centre for Reproductive Health, University of Edinburgh Queen’s Medical Research Institute, Edinburgh, United Kingdom, School of Women’s and Infants’ Health, University of Western Australia, Crawley, Australia

Competing Interests

The authors have declared that no competing interests exist.