About the Authors
- Brita Askeland Winje
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* E-mail: brita.winje@fhi.no
Affiliation Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
- Borghild Roald
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Affiliations Center for Pediatric and Pregnancy Related Pathology, Department of Pathology, Oslo University Hospital Ullevål, Oslo, Norway, Faculty of Medicine, University of Oslo, Norway
- Nina Petrov Kristensen
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Affiliation Department of Pathology, Østfold Hospital Trust, Fredrikstad, Norway
- J. Frederik Frøen
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Affiliation Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: BAW BR JFF. Performed the experiments: BAW BR NPK. Analyzed the data: BAW BR JFF. Contributed reagents/materials/analysis tools: BR NPK. Wrote the paper: BAW BR JFF.