title: The fourth decade of the Canadian Ophthalmological Society.
authors.forename: S Y
authors.initials: SY
authors.lastname: Shirley
mesh_terms: D002170:Canada; D004503:Education, Medical, Graduate; D049673:History, 20th Century; D006801:Humans; D009885:Ophthalmology / Q000193:education / Q000266:history*; D012955:Societies, Medical / Q000266:history* / Q000458:organization & administration