Koskinen, Satu
Hakkila, Kaisa
Kurkela, Juha http://orcid.org/0000-0003-3750-7318
Tyystjärvi, Esa
Tyystjärvi, Taina
Funding for this research was provided by:
University of Turku Graduate School
Article History
Received: 5 April 2018
Accepted: 26 June 2018
First Online: 9 July 2018
Competing Interests
: The authors declare no competing interests.