title: [G. V. Khlopin].
mesh_terms: D049673:History, 20th Century; D006920:Hygiene / Q000266:history; D009787:Occupational Medicine / Q000266:history; D011635:Public Health Administration / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: G. V. Khlopin.