Weschenfelder, Wolfram http://orcid.org/0000-0002-4828-1812
Friedel, Reinhard
Hofmann, Gunther O.
Lenz, Mark
Article History
Received: 26 June 2018
First Online: 10 January 2019
Compliance with ethical standards
:
: Wolfram Weschenfelder, Reinhard Friedel, Gunther O. Hofmann and Mark Lenz declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.