Received: 8 August 2020
Accepted: 19 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: This study was approved (EKNZ Req-2019-00933) by the local ethics committee “Ethikkommission Nordwest- und Zentralschweiz”, Basel, Switzerland. Participants were invited by email or directly in the outpatient clinic during routine visits to participate in the anonymous online questionnaire which at the beginning outlined the nature of the project, and described that participation was entirely voluntary. Consent to participate in the questionnaire was implied by its completion. No formal completion was required due to national regulations since participants were answering anonymously and no tracking was done.
: Not applicable.
: The authors declare that they have no competing interests.