Funding for this research was provided by:
Fortüne Project grant of the Medical Faculty of the University of Tübingen (Nr.2253-0-0)
Received: 16 May 2018
Accepted: 16 July 2019
First Online: 8 August 2019
Ethics approval and consent to participate
: This study was approved by the ethics committee of the Medical faculty of the Eberhard-Karls University and the University Hospital of Tübingen (project number 053/2017BO2). Members of the committee were: Prof. Dr. med Henner Giedke, Prof. Dr. med Jürgen Honegger, Prof. Dr. med. Holger Lerche, Prof. Dr. med. Dieter Luft, Prof. Dr. med. Klaus Mörike, Prof. Dr. med. Christian F. Poets, Prof. Dr. iur. Dr. h.c. Georg Sandberger, Prof. Dr. Dr. Siegmar Reinert, Prof. Dr. med. Dr. phil. Urban Wiesing. All participants signed a written informed consent before study enrollment.
: Not applicable.
: The authors declare that they have no competing interests.