@misc{Boczkowski_Andrzej._Occupational, author={Boczkowski, Andrzej.}, copyright={Nofer Institute of Occupational Medicine}, howpublished={online}, publisher={Nofer Institute of Occupational Medicine}, publisher={Polish Association of Occupational Medicine}, language={pol, eng}, title={Occupational medicine physicians on their speciality. Conceptual framework of a research project and characteristics of population under study}, type={language document}, type={serial - article}, }