Głosek-Sobieraj, Małgorzata
Cwalina-Ambroziak, Bożena
Waśkiewicz, Agnieszka
Hamouz, Karel
Perczak, Adam
Funding for this research was provided by:
University of Warmia and Mazury
Article History
Received: 4 June 2018
Accepted: 7 November 2018
First Online: 16 January 2019
Conflict of interest
: M. Głosek-Sobieraj, B. Cwalina-Ambroziak, A. Waśkiewicz, K. Hamouz and A. Perczak declare that they have no competing interests.