About the Authors

Cornelia Muschol-Steinmetz

Affiliation Department of Gynecology and Obstetrics, School of Medicine, J. W. Goethe-University, Frankfurt, Germany

Alexandra Friemel

Affiliation Department of Gynecology and Obstetrics, School of Medicine, J. W. Goethe-University, Frankfurt, Germany

Nina-Naomi Kreis

Affiliation Department of Gynecology and Obstetrics, School of Medicine, J. W. Goethe-University, Frankfurt, Germany

Joscha Reinhard

Affiliation Department of Gynecology and Obstetrics, St. Marien Hospital, Frankfurt, Germany

Juping Yuan

Contributed equally to this work with: Juping Yuan, Frank Louwen

yuan@em.uni-frankfurt.de

Affiliation Department of Gynecology and Obstetrics, School of Medicine, J. W. Goethe-University, Frankfurt, Germany

Frank Louwen

Contributed equally to this work with: Juping Yuan, Frank Louwen

Affiliation Department of Gynecology and Obstetrics, School of Medicine, J. W. Goethe-University, Frankfurt, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JY FL CMS. Performed the experiments: CMS AF JR NNK. Analyzed the data: CMS AF NNK JR JY FL. Wrote the manuscript: JY FL.