About the Authors

Inge Tency

inge.tency@ugent.be

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Hans Verstraelen

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Ivo Kroes

Affiliation Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Gabriële Holtappels

Affiliation Upper Airways Research Laboratory, Department of Oto-rhino-laryngology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Bruno Verhasselt

Affiliation Department of Clinical Chemistry, Microbiology, and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Mario Vaneechoutte

Affiliation Department of Clinical Chemistry, Microbiology, and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Rita Verhelst

Contributed equally to this work with: Rita Verhelst, Marleen Temmerman

Affiliation International Centre for Reproductive Health, Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Marleen Temmerman

Contributed equally to this work with: Rita Verhelst, Marleen Temmerman

Affiliations Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium, International Centre for Reproductive Health, Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

Competing Interests

Prof Dr Bruno Verhasselt serves as a PLOS ONE Academic editor. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HV MV RV MT IT. Performed the experiments: GH RV IT IK. Analyzed the data: IT. Wrote the first draft of the manuscript: IT. Contributed to the interpretation of the data: HV GH BV RV. Revised the article: HV IK BV MV RV MT.