Khan, Uniza Wahid
Øverli, Øyvind
Hinkle, Patricia M.
Pasha, Farhan Ahmad
Johansen, Ida Beitnes
Berget, Ingunn
Silva, Patricia I. M.
Kittilsen, Silje
Höglund, Erik
Omholt, Stig W.
Våge, Dag Inge
Article History
Received: 10 March 2016
Accepted: 13 June 2016
First Online: 4 July 2016
Competing interests
: The authors declare no competing financial interests.