Received: 24 July 2019
Accepted: 16 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The study protocol was reviewed and approved by the institutional ethics committee of Charite Universitätsmedizin, Berlin, Germany (EA1/005/19). All patients gave their written consent to take part in the study.
: Not applicable.
: All authors declare that they have no competing interest to declare.