Richter, Gesine
Borzikowsky, Christoph
Lieb, Wolfgang
Schreiber, Stefan
Krawczak, Michael
Buyx, Alena
Article History
Received: 24 September 2018
Revised: 27 November 2018
Accepted: 25 December 2018
First Online: 25 January 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.