Dlugosz, Aldona
Winckler, Björn
Lundin, Elin
Zakikhany, Katherina
Sandström, Gunnar
Ye, Weimin
Engstrand, Lars
Lindberg, Greger
Article History
Received: 11 November 2014
Accepted: 22 January 2015
First Online: 17 February 2015
Competing interests
: The authors declare no competing financial interests.