Tkachenko, Halyna http://orcid.org/0000-0003-3951-9005
Kurhaluk, Natalia http://orcid.org/0000-0002-4669-1092
Skaletska, Natalia http://orcid.org/0000-0003-2382-6262
Maksin, Viktor http://orcid.org/0000-0003-4646-1147
Osadowski, Zbigniew http://orcid.org/0000-0001-5086-7671
Funding for this research was provided by:
Pomeranian University in Slupsk
Article History
Received: 24 February 2020
Accepted: 8 June 2020
First Online: 17 June 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.