Fulczyk, Agnieszka
Łata, Eliza
Dolnik, Milos
Talik, Ewa
Kowalska, Teresa http://orcid.org/0000-0002-3145-7682
Sajewicz, Mieczysław
Article History
Received: 8 August 2018
Accepted: 8 September 2018
First Online: 17 September 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.