Swiatkowska-Warkocka, Zaneta
Pyatenko, Alexander
Krok, Franciszek
Jany, Benedykt R.
Marszalek, Marta
Article History
Received: 2 November 2014
Accepted: 20 March 2015
First Online: 8 May 2015
Competing interests
: The authors declare no competing financial interests.