Received: 27 April 2022
Accepted: 7 July 2022
First Online: 27 July 2022
: The cantonal Ethical Committee’s in Zurich City (Kantonale Ethikkommission); approves our study, which is part of a retrospective study complex targeting the therapy of DFI (BASEC 2019-01994). The informed consent is written.
: Not applicable.
: The authors declare that they have no competing interests.