[Trends in the development of Soviet hygiene].
D000397:Air Pollution; D049672:History, 19th Century; D049673:History, 20th Century; D006920:Hygiene / Q000266:history*; D007883:Legislation, Medical / Q000266:history; D012106:Research; D012425:Russia (Pre-1917); D014586:USSR
Puti razvitiia sovetskoĭ gigienicheskoĭ nauki.