Dummel, Sebastian http://orcid.org/0000-0003-0789-8936
Stahl, Jutta
Article History
First Online: 19 June 2018
Compliance with Ethical Standards
:
: All procedures performed in the present study with human participants were in accordance with the ethical standards of the IRB of the University of Heidelberg, the IRB of the University of Cologne, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.