Received: 23 December 2021
Accepted: 13 May 2022
First Online: 7 June 2022
: The study was approved by the ethics committee of Aarau, Canton Aargau, Switzerland (EK AG 2008/026) and written informed consent to participate to the study was obtained from all study participants.
: Not applicable. Data contain no information on any individual patient.
: The authors declare that they have no competing interests.