Struve, Rolf http://orcid.org/0000-0001-6915-5623
Struve, Horst
Article History
Received: 29 July 2020
Revised: 3 October 2020
Accepted: 6 October 2020
First Online: 24 November 2020
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.