Funding for this research was provided by:
Universität Leipzig (IN-1260910)
Received: 19 January 2020
Accepted: 26 August 2020
First Online: 10 September 2020
Ethics approval and consent to participate
: The study was approved by the local ethical commission board from the University of Leipzig (AZ EK: 111–16-14032016). Prior to the study, the patients were informed of the purpose of the research. Participants were assured of their right of refusal to participate or to withdraw from the study at any stage. The participants’ names were removed from the data.
: Not applicable.
: The authors declare that they have no competing interests.