Funding for this research was provided by:
Received: 13 April 2021
Accepted: 20 July 2021
First Online: 3 August 2021
: All assessments were conducted in accordance with ethical rules for research in human subjects following the Declaration of Helsinki (Fortalenza 2013). The study protocol (AZ 2020_2077) was approved by the ethics committee of the Hamburg University.All participants received written and verbal information about the study and signed informed consent prior to their participation.
: The authors have no financial or personal relationships with any other person or organization that could improperly influence or otherwise influence their work in this study. On behalf of all authors, the corresponding author states that there is no conflict of interest.