Salomo, L
Kamper, A-L
Poulsen, G M
Poulsen, S K
Astrup, A
Rix, M
Article History
Received: 22 June 2016
Revised: 27 October 2016
Accepted: 31 October 2016
First Online: 14 December 2016
Competing interests
: The authors declare no conflict of interest.