About the Authors

R. C. E. Hughes

Contributed equally to this work with: R. C. E. Hughes, J. Williman, J. E. Gullam

Ruth.Hughes@cdhb.health.nz

Affiliation Department of Obstetrics and Gynaecology, University of Otago, Christchurch Women’s Hospital, Christchurch, New Zealand

J. Williman

Contributed equally to this work with: R. C. E. Hughes, J. Williman, J. E. Gullam

Affiliation Biostatistics and Computational Biology Unit, University of Otago, Christchurch School of Medicine, Christchurch, New Zealand

J. E. Gullam

Contributed equally to this work with: R. C. E. Hughes, J. Williman, J. E. Gullam

Affiliation Department of Obstetrics and Gynaecology, University of Otago, Christchurch Women’s Hospital, Christchurch, New Zealand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RCEH JW JEG. Performed the experiments: RCEH JEG. Analyzed the data: RCEH JW. Contributed reagents/materials/analysis tools: RCEH JW. Wrote the paper: RCEH JW JEG.