[The history of smallpox eradication in the USSR].
D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D012425:Russia (Pre-1917); D012899:Smallpox / Q000266:history* / Q000517:prevention & control; D014586:USSR; D014611:Vaccination
K istorii likvidatsii ospy v SSSR.