Received: 3 February 2021
Accepted: 10 May 2021
First Online: 14 July 2021
: The institutional Ethics Committee of the University of Lausanne, which became the Ethics Commission of Canton Vaud, approved the baseline study, the first and the second follow-ups. The study was performed in agreement with the Helsinki declaration, and participants gave their signed informed consent.
: Not applicable.
: ‘The authors declare that this study received funding from GlaxoSmithKline, the Faculty of Biology and Medicine of Lausanne, and the Swiss National Science Foundation. The funder was not involved in the study design, collection, analysis, interpretation of data, the writing of this article or the decision to submit it for publication.