Fossheim, Maria
Primicerio, Raul
Johannesen, Edda
Ingvaldsen, Randi B.
Aschan, Michaela M.
Dolgov, Andrey V.
Article History
Received: 22 October 2014
Accepted: 9 April 2015
First Online: 18 May 2015
Competing interests
: The authors declare no competing financial interests.