Received: 12 December 2019
Accepted: 13 May 2020
First Online: 16 June 2020
Change Date: 30 July 2020
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: The trial was approved by the ethics committee of the general medical council Westfalen-Lippe and the WWU Münster (Germany), and registered at the German Clinical Trials Register (identifier: DRKS00003564).Written informed consent of the study procedure, the aims of the trial and the benefits and risks of participation was obtained from all participants online prior to baseline assessment.
: Not applicable.
: The authors report no financial or other relationship relevant to this article.