Richter, Götz M.
Article History
Received: 11 May 2020
Accepted: 5 October 2020
First Online: 16 October 2020
Compliance with Ethical Standards
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: The author declares that he has no conflict of interest.
: For this type of study, formal consent is not required.
: For this type of study, informed consent is not required.
: For this type of study, consent for publication is not required.