@misc{Sobala_Wojciech_Definition,,
 author={Sobala, Wojciech},
 copyright={Nofer Institute of Occupational Medicine},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={language document},
 type={serial - article},
 title={Definition, characteristics and methods of reducing the healthy worker effect},
}