Andersson, Richard L.
Ström, Valter
Gedde, Ulf W.
Mallon, Peter E.
Hedenqvist, Mikael S.
Olsson, Richard T.
Article History
Received: 2 June 2014
Accepted: 20 August 2014
First Online: 11 September 2014
Competing interests
: The authors declare no competing financial interests.