Funding for this research was provided by:
Charité – Universitätsmedizin Berlin
Received: 26 February 2021
Accepted: 30 June 2021
First Online: 21 July 2021
: Each of the three sub-studies was approved by the ethics committee of the Charité - Universitätsmedizin Berlin (EMAAge: EA1/362/16; EMACROSS: EA1/361/16; EMASPOT: EA1/363/16). Written informed consent was obtained from all participants. The authors confirm that all methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.