Vallgårda, S
Nielsen, M E J
Hansen, A K K
Cathaoir, K Ó
Hartlev, M
Holm, L http://orcid.org/0000-0003-0667-7779
Christensen, B J
Jensen, J D
Sørensen, T I A
Sandøe, P
Article History
Received: 28 January 2017
Revised: 26 April 2017
Accepted: 19 May 2017
First Online: 27 September 2017
Competing interests
: The authors declare no conflict of interest.