Langer, Rupert http://orcid.org/0000-0001-9491-3609
Tröhler, Alexandra
Schnüriger, Beat
Trippel, Mafalda
Blank, Annika
Banz, Yara
Candinas, Daniel
Perren, Aurel
Lugli, Alessandro
Article History
Received: 31 May 2018
Revised: 11 October 2018
Accepted: 1 November 2018
First Online: 13 November 2018
Compliance with ethical standards
: The project was approved by the Ethics Committee of the canton of Bern (KEK 236/15).
: The authors declare that they have no conflict of interest.