Düking, Peter http://orcid.org/0000-0003-0277-9858
Holmberg, Hans-Christer
Kunz, Philipp
Leppich, Robert
Sperlich, Billy
Article History
Received: 9 May 2020
Accepted: 14 August 2020
First Online: 12 September 2020
Compliance with ethical standards
:
: The authors declare that they do not have any conflict of interest.
: Pre-approved by the institute’s ethical committee and performed in accordance with the Declaration of Helsinki.
: Given by each participant.