Mikulski, Witold http://orcid.org/0000-0002-2387-9631
Funding for this research was provided by:
Central Institute for Labour Protection - National Research Institute
Article History
Received: 28 August 2019
Accepted: 4 October 2020
First Online: 15 October 2020
Compliance with ethical standards
:
: The author declares that he has no conflict of interest.
: Not applicable.