Funding for this research was provided by:
Oesterreichische Nationalbank (Project 17271)
Received: 1 September 2020
Accepted: 12 October 2020
First Online: 21 October 2020
Ethics approval and consent to participate
: All participants gave informed written consent and the study was approved by the local ethics committee at the Innsbruck Medical University (EK Nr: 1103/2020).
: Not applicable.
: The authors declare no conflict of interest connected with this study.