Funding for this research was provided by:
Uniwersytet Medyczny im. Piastów Slaskich we Wroclawiu (STM.D150.17.063)
Article History
Received: 2 September 2019
Revised: 5 December 2019
Accepted: 19 December 2019
First Online: 4 January 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.