Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (DFG-INST 2388/71-1 FUGG)
Deutsche Forschungsgemeinschaft and Open Access Publishing Fund of University of Tübingen
Received: 31 January 2019
Accepted: 17 October 2019
First Online: 4 November 2019
Ethics approval and consent to participate
: Approval of this prospective study was given by the Institutional Review Board at the University Hospital Tübingen (IRB# 320/2015BO2).All patients gave written informed consent to participate.ClinicalTrials.gov Identifier NCT02820727.
: Not applicable.
: The authors declare that they have no competing interests.