[LENIN'S CONCERN FOR THE HEALTH OF WORKERS].
D003148:Communism; D006262:Health; D006664:History; D049673:History, 20th Century; D006801:Humans; D008511:Medicine; D009787:Occupational Medicine; D014586:USSR
HISTORY; HISTORY OF MEDICINE, 20TH CENT.; INDUSTRIAL MEDICINE; USSR
ZABOTA V. I. LENINA O ZDOROV'E TRUDIASHCHIKHSIA.