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Article History

Received: 25 November 2019

Accepted: 24 June 2020

First Online: 1 July 2020

Ethics approval and consent to participate

: In accordance with the Swiss regulations on research involving humans this study does not fall within the scope of an ethical approval (Cantonal Ethics Committee Zurich; No: Req-2019-00110). The request to the Ethics Committee included a detailed description of the consent and data collection procedures. Panelists were invited and gave their written informed consent to participate in the Delphi study by email. Additionally, each rounds’ questionnaire included a consent form. In accordance with the European General Data Protection Regulation, the consent form included all necessary information, and all panelists explicitly gave their consent for the use of their data for research purposes. To participate in the survey, panelists had to click on a button to consent with the data collection before filling out the questionnaires.

: Not applicable.

: All authors disclose any competing interests.