Voutilainen, Liina
Kallio, Eva R.
Niemimaa, Jukka
Vapalahti, Olli
Henttonen, Heikki
Article History
Received: 25 June 2015
Accepted: 15 January 2016
First Online: 18 February 2016
Change Date: 13 April 2016
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.