Karpierz, E.
Niedzicki, L.
Trzeciak, T.
Zawadzki, M.
Dranka, M.
Zachara, J.
Żukowska, G. Z.
Bitner-Michalska, A.
Wieczorek, W.
Article History
Received: 28 April 2016
Accepted: 21 September 2016
First Online: 21 October 2016
Competing interests
: The authors declare no competing financial interests.