Schaad, Béatrice http://orcid.org/0000-0002-4884-2413
Bourquin, Céline
Panese, Francesco
Stiefel, Friedrich
Article History
Received: 5 June 2018
Accepted: 14 January 2019
First Online: 28 January 2019
Ethics approval and consent to participate
: The Human Research Ethics Committee of the Canton of Vaud approved the study protocol. Participants were informed orally and in writing about the study and provided written consent.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.