[Health protection for workers in the USSR].
D006276:Health Facility Size; D049673:History, 20th Century; D010820:Physicians / Q000600:supply & distribution; D011634:Public Health / Q000266:history*; D014586:USSR
Okhrana zdorov'ia trudiashchikhsia v Soiuze Sovetskikh Sotsialisticheskikh Respublik.