Kochańczyk, Tomasz
Nowakowski, Michał
Wojewska, Dominika
Kocyła, Anna
Ejchart, Andrzej
Koźmiński, Wiktor
Krężel, Artur
Article History
Received: 30 June 2016
Accepted: 14 October 2016
First Online: 3 November 2016
Competing interests
: The authors declare no competing financial interests.