Grzybowski, Andrzej
Kanclerz, Piotr
Muzyka-Woźniak, Maria
Funding for this research was provided by:
University of Warmia and Mazury
Article History
Received: 26 April 2018
Revised: 16 January 2019
Accepted: 11 February 2019
First Online: 1 March 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. Thus, informed consent was not required.