Bengtsson, Mia M.
Wagner, Karoline
Burns, Nancy R.
Herberg, Erik R.
Wanek, Wolfgang
Kaplan, Louis A.
Battin, Tom J.
Article History
Received: 30 April 2014
Accepted: 15 May 2014
First Online: 5 June 2014
Competing interests
: The authors declare no competing financial interests.