Friedrich, Frank http://orcid.org/0000-0003-0369-1006
Kubiak, Martin
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (FR 3062/2-1)
Article History
Received: 29 November 2017
Revised: 11 January 2018
Accepted: 20 January 2018
First Online: 3 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or living animals performed by any of the authors.