Funding for this research was provided by:
Bundesministerium für Gesundheit (ZMVI1-517FSB126)
Article History
Received: 19 August 2019
Accepted: 6 November 2019
First Online: 8 January 2020
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the Medical School Hamburg Ethical Committee (reference number MSB-2018-11). The Ethics Committee approved the research protocol (date of approval 3 March 2018). Written informed consent will be obtained from all subjects prior to their participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.