Lehti, Timo A. http://orcid.org/0000-0003-2621-2362
Pajunen, Maria I. http://orcid.org/0000-0001-5484-2228
Skog, Maria S.
Finne, Jukka http://orcid.org/0000-0002-8076-3344
Article History
Received: 1 March 2017
Accepted: 3 November 2017
First Online: 4 December 2017
Competing interests
: The authors declare no competing financial interests.