@misc{Martynowicz_Helena_Occupational,
 author={Martynowicz, Helena and Mędraś, Marek and Andrzejak, Ryszard},
 copyright={Martynowicz, Helena},
 copyright={Mędraś, Marek},
 copyright={Andrzejak, Ryszard},
 howpublished={online},
 publisher={Nofer Institute of Occupational Medicine},
 publisher={Polish Association of Occupational Medicine},
 language={pol, eng},
 type={serial - article},
 type={language document},
 title={Occupational risk factors and male breast cancer},
}