Nieminen, Mika
Piirainen, Sirpa
Sikström, Ulf
Löfgren, Stefan
Marttila, Hannu
Sarkkola, Sakari
Laurén, Ari
Finér, Leena
Article History
Received: 24 November 2017
Revised: 15 February 2018
Accepted: 14 March 2018
First Online: 27 March 2018