Kien, Christina
Sommer, Isolde
Faustmann, Anna
Gibson, Lacey
Schneider, Martha
Krczal, Eva
Jank, Robert
Klerings, Irma http://orcid.org/0000-0001-6644-9845
Szelag, Monika
Kerschner, Bernd
Brattström, Petter
Gartlehner, Gerald
Funding for this research was provided by:
Internal grant of the University for Continuing Education, Danube-University Krems
Article History
Received: 30 April 2018
Accepted: 16 August 2018
First Online: 27 August 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.