Askmyr, M
Ågerstam, H
Lilljebjörn, H
Hansen, N
Karlsson, C
von Palffy, S
Landberg, N
Högberg, C
Lassen, C
Rissler, M
Richter, J
Ehinger, M
Järås, M
Fioretos, T
Article History
Received: 27 October 2014
Accepted: 10 November 2014
First Online: 12 December 2014
Competing interests
: The authors declare no conflict of interest.