[The outstanding physician-social activist D. P. Nikol'skiĭ (1855-1918)].
D003148:Communism; D049672:History, 19th Century; D049673:History, 20th Century; D009787:Occupational Medicine / Q000266:history; D012425:Russia (Pre-1917); D012955:Societies, Medical / Q000266:history; D012959:Socioeconomic Factors / Q000266:history
Vydaiushchiĭsia vrach-obshchestvennik D. P. Nikol'skiĭ (1855-1918)