title: [Hygienists of Petersburg and zemstvo medicine].
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D011634:Public Health / Q000266:history*; D012425:Russia (Pre-1917); D012499:Sanitation / Q000266:history*
vernacular_title: Gigienisty Petersburga i zemskaia meditsina.