Waszak P M, Kawalec N
Department of Hygiene and Epidemiology, Medical University of Gdansk, Poland, Ulica Dębinki 7, Gdańsk, Poland; Janusz Korczak Memorial Hospital, Ulica Hubalczyków 1, 76-200 Slupsk, Poland.
Janusz Korczak Memorial Hospital, Ulica Hubalczyków 1, 76-200 Slupsk, Poland.
Public Health. 2017 Mar;144:13-15. doi: 10.1016/j.puhe.2016.11.003. Epub 2016 Dec 21.