[Problems of social hygiene in the works of Zemstvo physicians of the Simbir Province].
D049672:History, 19th Century; D049673:History, 20th Century; D011634:Public Health / Q000266:history*; D012423:Rural Health / Q000266:history*; D012425:Russia (Pre-1917)
Voprosy sotsial'noĭ gigieny v rabotakh zemskikh vracheĭ Simbirskoĭ gubernii.