Oinio, Ville http://orcid.org/0000-0001-7036-5417
Sundström, Mikko
Bäckström, Pia
Uhari-Väänänen, Johanna
Kiianmaa, Kalervo
Raasmaja, Atso
Piepponen, Petteri
Article History
Received: 19 September 2017
Accepted: 31 January 2018
First Online: 9 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.