Klimuszko, Elzbieta
Orywal, Karolina
Sierpinska, Teresa http://orcid.org/0000-0002-3004-8342
Sidun, Jarosław
Golebiewska, Maria
Article History
Received: 5 January 2018
Accepted: 25 February 2018
First Online: 19 March 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.