Mikhailova, Alexandra
Jylhä, Antti
Rieck, Jochen
Nättinen, Janika
Ilmarinen, Tanja
Veréb, Zoltán
Aapola, Ulla
Beuerman, Roger
Petrovski, Goran
Uusitalo, Hannu
Skottman, Heli
Article History
Received: 29 June 2015
Accepted: 8 September 2015
First Online: 1 October 2015
Competing interests
: The authors declare no competing financial interests.