[80th anniversary of Leningrad Ophthalmological Society].
D049672:History, 19th Century; D049673:History, 20th Century; D009885:Ophthalmology / Q000266:history*; D012426:Russia; D012425:Russia (Pre-1917); D012955:Societies, Medical / Q000266:history*
Leningradskomu oftal'mologicheskomu obshchestvy--80 let.