About the Authors

Evelyn Klein

Affiliation Department of Gynecology and Obstetrics, Klinikum Rechts der Isar, TU München, Munich, Germany

Dietmar Schlembach

Current address: Vivantes Clinics Neukölln, Clinic of Obstetrics, Berlin, Germany

Affiliation Dept. of Obstetrics, University Hospital, Jena, Germany

Angela Ramoni

Affiliation Department of Obstetrics and Gynecology, University Hospital of Innsbruck, Innsbruck, Austria

Elena Langer

Affiliation Department of Obstetrics, Leipzig University, Leipzig, Germany

Franz Bahlmann

Affiliation Department of Obstetrics, Bürgerhospital, Frankfurt, Germany

Sabine Grill

Affiliation Department of Gynecology and Obstetrics, Klinikum Rechts der Isar, TU München, Munich, Germany

Helene Schaffenrath

Affiliation Department of Obstetrics and Gynecology, University Hospital of Innsbruck, Innsbruck, Austria

Reinhard van der Does

Affiliation IST GmbH, Mannheim, Germany

Diethelm Messinger

Affiliation IST GmbH, Mannheim, Germany

Wilma D. J. Verhagen-Kamerbeek

Affiliation Medical and Scientific Affairs, Roche Diagnostics International Ltd, Rotkreuz, Switzerland

Manfred Reim

Affiliation Medical and Scientific Affairs, Roche Diagnostics GmbH, Penzberg, Germany

Martin Hund

Affiliation Medical and Scientific Affairs, Roche Diagnostics International Ltd, Rotkreuz, Switzerland

Holger Stepan

Holger.Stepan@medizin.uni-leipzig.de

Affiliation Department of Obstetrics, Leipzig University, Leipzig, Germany

Competing Interests

DS and HSt are consultants for Roche Diagnostics. RvdD is an employee of IST GmbH, contracted by Roche Diagnostics. DM was an employee of IST GmbH, contracted by Roche Diagnostics, at the time of the study. WDJV-K, MR and MH are employees of Roche Diagnostics. MH also holds stock in F. Hoffmann-La Roche AG. In addition, MH reports a pending patent related to the sFlt- 1/PlGF or endoglin/PlGF ratio to rule out onset of preeclampsia in pregnant women within a certain time period (PCT/EP2013/063115), and pending patents related to the dynamic of sFlt-1 or endoglin/PlGF ratio as an indicator for imminent preeclampsia and/or HELLP syndrome (PCT/EP2012/072157) and the prediction of postpartum HELLP syndrome, postpartum eclampsia or postpartum preeclampsia (PCT/EP2015/051457). ELECSYS® and COBAS® are trademarks of Roche. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RvdD DM MH. Performed the experiments: EK DS AR EL SG H. Stepan H. Schaffenrath. Analyzed the data: EK RvdD DM WDJV-K MR MH H. Stepan. Contributed reagents/materials/analysis tools: DS FB WDJV-K. Wrote the paper: EK DS AR EL FB SG H. Schaffenrath RvdD DM WDJV-K MR MH H. Stepan.