Urbanski, Jacek Andrzej
Stempniewicz, Lech
Węsławski, Jan Marcin
Dragańska-Deja, Katarzyna
Wochna, Agnieszka
Goc, Michał
Iliszko, Lech
Article History
Received: 6 July 2016
Accepted: 3 February 2017
First Online: 7 March 2017
Competing interests
: The authors declare no competing financial interests.