Funding for this research was provided by:
FP7 Ideas: European Research Council (No: 280873)
Austrian Science Fund (W1253)
Horizon 2020 Framework Programme (633964)
Received: 3 February 2020
Accepted: 18 May 2020
First Online: 27 May 2020
Ethics approval and consent to participate
: Study approval was given by the local institution, and written informed consent was received from all participants prior to their inclusion in the study in accordance with the Declaration of Helsinki.
: All authors gave the consent for publication.
: The authors declare no commercial or financial conflict of interest.