Funding for this research was provided by:
Christian-Albrechts-Universität zu Kiel
Federal State Funding at Kiel University (1)
Received: 14 November 2020
Accepted: 15 January 2021
First Online: 11 February 2021
Compliance with ethical standards
: AK, SG and HR are inventors on a German Patent application 4009.10 submitted by Kiel University.