Wartiovaara-Kautto, Ulla
Hirvonen, Elina A. M.
Pitkänen, Esa http://orcid.org/0000-0002-9818-6370
Heckman, Caroline
Saarela, Janna
Kettunen, Kaisa
Porkka, Kimmo
Kilpivaara, Outi
Article History
Received: 26 September 2017
Revised: 20 December 2017
Accepted: 5 January 2018
First Online: 10 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.