About the Authors

Heidi Kruit

Contributed equally to this work with: Heidi Kruit, Leena Rahkonen

Roles Conceptualization, Investigation, Project administration, Writing – original draft

heidi.kruit@hus.fi

Affiliation Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

Irmeli Nupponen

Roles Investigation, Validation, Writing – review & editing

‡ IN and SH also contributed equally to this work.

Affiliation Department of Neonatology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

Seppo Heinonen

Roles Validation, Writing – review & editing

‡ IN and SH also contributed equally to this work.

Affiliation Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

Leena Rahkonen

Contributed equally to this work with: Heidi Kruit, Leena Rahkonen

Roles Data curation, Formal analysis, Methodology, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland

Competing Interests

The authors have declared that no competing interests exist.