Funding for this research was provided by:
German Federal Joint Committee (01NVF18012)
Received: 24 November 2020
Accepted: 16 December 2020
First Online: 12 January 2021
Ethics approval and consent to participate
: The study has been given ethical approval by Prof Dr. Wolfgang Eisenmenger, chairman of the Ethics Commission of the Faculty of Medicine at LMU Munich [<i>Ethikkommission der Medizinischen Fakultät der LMU München</i>], on 26 April 2019 and updated on the 20 August 2020, project reference number: 19–216. All participants are required to give written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.