Köninger, Angela
Enekwe, Antje
Mach, Pawel
Andrikos, Dimitrios
Schmidt, Boerge
Frank, Mirjam
Birdir, Cahit
Kimmig, Rainer
Gellhaus, Alexandra
Dieplinger, Hans http://orcid.org/0000-0002-4484-8471
Funding for this research was provided by:
Austrian Research Fund (P19969-B11)
Universty of Duisburg-Essen
Article History
Received: 14 May 2018
Accepted: 6 September 2018
First Online: 15 September 2018
Compliance with ethical standards
:
: All authors declare no conflicts of interest.
: This study was approved by the research ethics committee of the University of Duisburg-Essen (number 125212-BO) and performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.
: All women provided written informed consent.