About the Authors

Inge de Milliano

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

i.demilliano@vumc.nl

Affiliation Department of Obstetrics and Gynecology, VU Medical Center, Amsterdam, The Netherlands

Moniek Twisk

Roles Conceptualization, Data curation, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, MC Zuiderzee, Lelystad, The Netherlands

Johannes C. Ket

Roles Data curation, Writing – review & editing

Affiliation Medical Library, Vrije Universiteit, Amsterdam, The Netherlands

Judith A. Huirne

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, VU Medical Center, Amsterdam, The Netherlands

Wouter J. Hehenkamp

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, VU Medical Center, Amsterdam, The Netherlands

Competing Interests

JH received several research grants from Samsung, Celenova and ZonMW. WH received a research grant from Gedeon Richter. The competing interests stated for authors JH and WH do not alter their adherence to PLOS ONE policies on sharing data and materials.