Frotzler, Angela
Krebs, Jörg
Göhring, Andrea
Hartmann, Kathrin
Tesini, Stefanie
Lippuner, Kurt
Article History
Received: 2 July 2019
Revised: 30 October 2019
Accepted: 30 October 2019
First Online: 15 November 2019
Compliance with ethical standards
:
: This study had been approved by the Ethics Committee of Northwestern and Central Switzerland. All participants provided written informed consent before participation in the study. We certify that all applicable institutional and governmental regulations concerning the ethical use of human volunteers were followed during the course of this research.
: The authors declare that they have no conflict of interest.