Walter, Adeline
Strizek, Brigitte
Berg, Christoph
Geipel, Annegret
Gembruch, Ulrich
Engels, Alexander C. http://orcid.org/0000-0002-8478-5831
Article History
Received: 26 August 2019
Accepted: 25 October 2019
First Online: 25 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This research includes the data of human participants only.
: All patients have given written informed consent to data collection, analysis and the use of these data for research.
: Ethical approval was not required as the Ethics Committee of the University of Bonn does not request formal approval for an anonymized retrospective analysis of clinical data, as long as patients have given their written consent.