Wolber, Philipp http://orcid.org/0000-0001-9019-2840
Schwarz, David
Balk, Matthias
Luckscheiter, Nicola
Sommer, Claudia
Gostian, Antoniu-Oreste
Article History
Received: 16 December 2017
Accepted: 21 March 2018
First Online: 24 March 2018
Compliance with ethical standards
:
: The authors have declared that no conflicts of interest exist.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional committee and with the 1964 Helsinki declaration and its later amendments.