Rantakari, Pia
Jäppinen, Norma
Lokka, Emmi
Mokkala, Elias
Gerke, Heidi
Peuhu, Emilia
Ivaska, Johanna
Elima, Kati
Auvinen, Kaisa
Salmi, Marko
Article History
Received: 10 March 2016
Accepted: 31 August 2016
First Online: 12 October 2016
Competing interests
: The authors declare no competing financial interests.