Received: 17 July 2020
Accepted: 6 November 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: Written informed consent was obtained from all patients and the study was approved by the local ethics committee (Kantonale Ethikkommission Nordwest- und Zentralschweiz (EKNZ, approval number 2020-01071) in accordance with ‘good clinical practice’ (GCP) guidelines and the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.