Suwelack, Barbara http://orcid.org/0000-0002-4082-3074
,
Wörmann, Viktoriya
Berger, Klaus
Gerß, Joachim
Wolters, Heiner
Vitinius, Frank
Burgmer, Markus
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01 GY1321)
Article History
Received: 23 April 2017
Accepted: 13 March 2018
First Online: 10 April 2018
Ethics approval and consent to participate
: The study is approved by the local ethics committees of all participating centers who affiliated to the vote of the principal ethics committee of the Westfalian Wilhelms University of Münster WWU (code-2013-587-f-S).
: Not applicable.
: The authors declare that they have no competing interests.
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