Hansen, Birgitte
Thorling, Lærke
Schullehner, Jörg http://orcid.org/0000-0002-1153-6885
Termansen, Mette
Dalgaard, Tommy
Article History
Received: 22 February 2017
Accepted: 26 June 2017
First Online: 17 August 2017
Competing Interests
: The authors declare that they have no competing interests.