Wagner, Robert Kaspar http://orcid.org/0000-0002-7031-1643
Kloen, Peter http://orcid.org/0000-0003-1338-4771
Article History
Received: 22 December 2021
Accepted: 16 April 2022
First Online: 14 May 2022
Declarations
:
: The authors have no competing interests to declare that are relevant to the content of this article.
: The Medical Ethics Review Committee confirmed that the Medical Research Involving Human Subjects Act (WMO) does not apply to this study and that an official approval of this study by the committee is not required (reference number: W21_182 # 21.197). The study was carried out in accordance with the World Medical Association Declaration of Helsinki.
: Verbal informed consent to participate was obtained from participants. As per local institutional guidelines, if it was impossible to obtain consent, research using previously collected and patient data is allowed (ground: general no-objection).