Funding for this research was provided by:
Max-Planck-Gesellschaft
Article History
Received: 19 April 2017
Accepted: 11 December 2017
First Online: 22 December 2017
Compliance with ethical standards
:
: Open access funding provided by Max Planck Society.
: Author Elisa Filevich declares that she has no conflict of interest. Author Sebastian Horn declares that he has no conflict of interest. Author Simone Kühn declares that she has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee 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.