Funding for this research was provided by:
Universität Leipzig, Medizinische Fakultät (933 100-026)
Article History
Received: 3 April 2019
Accepted: 27 June 2019
First Online: 12 July 2019
Ethics approval and consent to participate
: The present study was approved by the local ethical review board (University of Leipzig, Medical Faculty; AZ: 421/17-ek; 14.11.2017; 01.03.2018). Written informed consent was obtained from all participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.