[Activities of medical societies in prerevolutionary Russia in protecting workers' health].
D049673:History, 20th Century; D006801:Humans; D008511:Medicine; D016272:Occupational Health; D009787:Occupational Medicine; D012426:Russia; D012952:Societies; D012955:Societies, Medical
HISTORY OF MEDICINE, XX CENT.; INDUSTRIAL MEDICINE; SOCIETIES, MEDICAL