Received: 18 February 2020
Accepted: 5 May 2020
First Online: 1 June 2020
Ethics approval and consent to participate
: This trial was given a positive evaluation by the Institutional Review Board of Waldfriede Hospital e.V., reference number 2017.5. Informed consent is obtained from all study participants prior to enrollment.
: Not applicable.
: The authors declare that they have no competing interests. The final trial data set will be available to the investigators.