Reinhart, Ramona
Rohner, Lionel
Wicki, Simone
Fux, Michaela
Kaufmann, Thomas http://orcid.org/0000-0001-9906-874X
Article History
Received: 12 May 2017
Revised: 28 July 2017
Accepted: 11 August 2017
First Online: 29 September 2017
Competing interests
: The authors declare no conflict of interest.