Pietruczuk, Krzysztof
Lisowska, Katarzyna A.
Grabowski, Karol
Landowski, Jerzy
Witkowski, Jacek M.
Article History
Received: 7 September 2017
Accepted: 8 February 2018
First Online: 20 February 2018
Competing Interests
: The authors declare no competing interests.