About the Authors

Martin G. Tolsgaard

martintolsgaard@gmail.com

Affiliation Department of Obstetrics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark

Tobias Todsen

Affiliation Centre for Clinical Education, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark

Jette L. Sorensen

Affiliation Department of Obstetrics, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark

Charlotte Ringsted

Affiliation Department of Anesthesia, University of Toronto and The Wilson Centre, University Health Network and UoT, Toronto, Canada

Torben Lorentzen

Affiliation Department of Radiology, Herlev University Hospital, Herlev, Denmark

Bent Ottesen

Affiliation Juliane Marie Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark

Ann Tabor

Affiliation Department of Obstetrics, Juliane Marie Centre, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MGT TT JLS CR TL BO AT. Performed the experiments: MGT TT JLS CR TL BO AT. Analyzed the data: MGT TT JLS CR TL BO AT. Contributed reagents/materials/analysis tools: MGT TT JLS CR TL BO AT. Wrote the paper: MGT TT JLS CR TL BO AT.