Grzyb, Katarzyna
Czarnota, Anna
Brzozowska, Agnieszka
Cieślik, Anna
Rąbalski, Łukasz
Tyborowska, Jolanta
Bieńkowska-Szewczyk, Krystyna
Article History
Received: 1 April 2016
Accepted: 6 July 2016
First Online: 2 August 2016
Competing interests
: The authors declare no competing financial interests.