Thrane, S
Pedersen, A M
Thomsen, M B H
Kirkegaard, T
Rasmussen, B B
Duun-Henriksen, A K
Lænkholm, A V
Bak, M
Lykkesfeldt, A E
Yde, C W
Article History
Received: 11 October 2013
Revised: 15 September 2014
Accepted: 23 September 2014
First Online: 3 November 2014
Competing interests
: The authors declare no conflict of interest.