Ekman, Elina http://orcid.org/0000-0003-1330-7418
Mäkelä, Keijo
Kohonen, Ia
Hiltunen, Ari
Itälä, Ari
Article History
Received: 27 November 2017
Accepted: 30 May 2018
First Online: 2 June 2018
Compliance with ethical standards
:
: The authors declare no conflicts of interest.
: Regional Ethical Review Board approval was obtained from the Regional Ethical Review Board in Turku (Dnro TO1/003/14) prior to initiation of this study.