Schmitz, Christine http://orcid.org/0000-0003-2766-1696
Baum, Julia
Lax, Hildegard
Lehmann, Nils
Gromke, Tanja
Beelen, Dietrich W.
Jöckel, K.-H.
Dührsen, Ulrich
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01GY1341)
Article History
Received: 19 December 2019
Accepted: 20 February 2020
First Online: 5 March 2020
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: All procedures performed in this study were in accordance with the standards of the Ethics Committee of the University of Duisburg-Essen (Reference No. 14-5692-BO) which are based on the 1964 Helsinki Declaration and its later amendments.
: Written informed consent was obtained from all study participants.