Pietrucha-Dutczak, Marita
Smedowski, Adrian
Liu, Xiaonan http://orcid.org/0000-0002-9600-0536
Matuszek, Iwona
Varjosalo, Markku
Lewin-Kowalik, Joanna
Article History
Received: 28 April 2017
Accepted: 2 October 2017
First Online: 6 November 2017
Competing Interests
: The authors declare that they have no competing interests.