Funding for this research was provided by:
University of Zurich
Article History
Accepted: 14 June 2023
First Online: 28 June 2023
Declarations
:
: This retrospective study was approved by the Cantonal Ethics Board of the Canton of Zurich (document KEK ZH-No. 15–0686), and all methods were performed in accordance with the relevant guidelines and regulations. The Cantonal Ethics Board of the Canton of Zurich has also waived the need of an informed consent.
: The authors declare no competing interests.