May, Ulrike
Prince, Stuart
Vähätupa, Maria
Laitinen, Anni M.
Nieminen, Katriina
Uusitalo-Järvinen, Hannele
Järvinen, Tero A. H.
Article History
Received: 22 May 2014
Accepted: 1 June 2015
First Online: 2 July 2015
Competing interests
: The authors declare no competing financial interests.