Witkowski, Andrzej
Gomes, Ana
Mann, David G.
Trobajo, Rosa
Li, Chunlian
Barka, Frederik
Gusev, Evgeniy
Dąbek, Przemysław
Grzonka, Justyna
Kurzydłowski, Krzysztof J.
Zgłobicka, Izabela
Harrison, Michael
Boski, Tomasz
Article History
Received: 8 May 2015
Accepted: 26 October 2015
First Online: 24 November 2015
Competing interests
: The authors declare no competing financial interests.