Received: 14 February 2022
Accepted: 13 June 2022
First Online: 18 August 2022
: Ethical approval was obtained from the cantonal ethical committee of Bern, Switzerland (KEK 124/09) and the study was conducted in accordance with the Declaration of Helsinki. All participants provided written informed consent for participation in the study. The study was registered at ExternalRef removed (NCT00933322).
: All authors consent to publish the present results.
: The authors declare that they have no competing interests.