Nussbaumer, Anita http://orcid.org/0000-0002-3430-7006
Meusburger, Katrin
Schmitt, Maria
Waldner, Peter
Gehrig, Regula
Haeni, Matthias http://orcid.org/0000-0003-3977-2166
Rigling, Andreas
Brunner, Ivano http://orcid.org/0000-0003-3436-995X
Thimonier, Anne
Article History
Received: 27 October 2019
Accepted: 9 March 2020
First Online: 24 March 2020
Competing interests
: The authors declare no competing interests.