Kamianowska, M
SzczepaĆski, M
Kulikowska, E E
Bebko, B
Wasilewska, A
Article History
Received: 13 June 2016
Revised: 25 August 2016
Accepted: 26 August 2016
First Online: 29 September 2016
Competing interests
: The authors declare no conflict of interest.