Staff, Synnöve
Aaltonen, Mari
Huhtala, Heini
Pylvänäinen, Kirsi
Mecklin, Jukka-Pekka
Mäenpää, Johanna
Article History
Received: 14 March 2016
Revised: 18 May 2016
Accepted: 24 May 2016
First Online: 23 June 2016
Competing interests
: The authors declare no conflict of interest.