Nymo, S
Coutinho, S R
Jørgensen, J
Rehfeld, J F
Truby, H
Kulseng, B
Martins, C
Article History
Received: 31 October 2016
Revised: 22 March 2017
Accepted: 2 April 2017
First Online: 25 April 2017
Competing interests
: The authors declare no conflict of interest.