About the Authors
- Manisha Nair
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* E-mail: manisha.nair@npeu.ox.ac.uk
Affiliation National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- Jennnifer J. Kurinczuk
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Affiliation National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
- Marian Knight
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Affiliation National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: MK. Analyzed the data: MN. Contributed reagents/materials/analysis tools: JK MK. Wrote the paper: MN JK MK.