Walz, Annabelle
Leroy, Didier
Andenmatten, Nicole
Mäser, Pascal
Wittlin, Sergio http://orcid.org/0000-0002-0811-0912
Article History
Received: 17 September 2019
Accepted: 7 December 2019
First Online: 18 December 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.