About the Authors
- Astanand Jugessur
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Contributed equally to this work with: Astanand Jugessur, Øivind Skare
* E-mail: astanand.jugessur@fhi.no
Affiliations Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway, Craniofacial Research, Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Australia
- Øivind Skare
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Contributed equally to this work with: Astanand Jugessur, Øivind Skare
Affiliations Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
- Rolv T. Lie
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Affiliations Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway, Medical Birth Registry of Norway, Norwegian Institute of Public Health, Bergen, Norway
- Allen J. Wilcox
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Affiliation Epidemiology Branch, National Institute of Environmental Health Sciences (National Institute of Health, Durham, North Carolina, United States of America
- Kaare Christensen
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Affiliations Department of Epidemiology, University of Southern Denmark, Odense, Denmark, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark, Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Lene Christiansen
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Affiliation Department of Epidemiology, University of Southern Denmark, Odense, Denmark
- Truc Trung Nguyen
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Affiliation Medical Birth Registry of Norway, Norwegian Institute of Public Health, Bergen, Norway
- Jeffrey C. Murray
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Affiliation Departments of Pediatrics, Epidemiology and Biological Sciences, University of Iowa, Iowa City, Iowa, United States of America
- Håkon K. Gjessing
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Affiliations Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway, Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: AJ ØS RTL AJW KC JCM HKG. Performed the experiments: AJ ØS HKG. Analyzed the data: AJ ØS HKG. Contributed reagents/materials/analysis tools: AJ ØS LC HKG RTL AJW JCM TTN. Wrote the paper: AJ ØS HKG AJW JCM.