Migliazza, Kevin
Bähler, Caroline
Liedtke, Daniel
Signorell, Andri
Boes, Stefan
Blozik, Eva
Article History
Received: 10 February 2021
Accepted: 17 May 2021
First Online: 28 May 2021
Declarations
:
: All methods were performed in accordance with relevant guidelines and regulations. Ethic approval was obtained from the Cantonal Ethics Committee of the Canton of Zurich (KEL-ZH-NR. 2014–0262). Because the data were retrospective, pre-existing, and de-identified, no informed consent was needed.
: Not applicable.
: The authors declare that they have no conflicts of interest. Helsana Group provided support in the form of salaries for authors (KM, CB, AS, EB), without having any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.