Siegenthaler, Lea http://orcid.org/0000-0003-3139-5722
Sprenger, Florian D.
Kneubuehl, Beat P.
Jackowski, Christian
Article History
Received: 20 March 2017
Accepted: 6 September 2017
First Online: 29 September 2017
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.