[Memorable ophthalmological dates in 1990].
Vipmanis
V E
VE
D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D009885:Ophthalmology / Q000266:history*
Pamiatnye oftal'mologicheskie daty na 1990 g.