title: [Scientific achievements in the field of public hygiene during the 30 years of the Polish People's Republic. I. Introduction].
mesh_terms: D000397:Air Pollution / Q000032:analysis; D004782:Environmental Health; D049673:History, 20th Century; D006920:Hygiene; D011044:Poland; D011634:Public Health / Q000266:history*; D014876:Water Pollution / Q000032:analysis
vernacular_title: Dorobek naukowy w dziedzinie higieny komunalnej w okresie XXX-lecia Polskiej Rzeczypospolitej Ludowej. 1. Wstep