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Robert Laidlaw MacMillan
Robert Laidlaw MacMillan, cardiologist (born 23 May 1917 in Toronto, Ontario; died 5 September 2007 in Toronto, Ontario). Robert MacMillan was a cardiologist and professor of medicine at the University of Toronto and co-founder of the world’s first coronary care unit in 1962. He is the father of acclaimed historian and author Margaret MacMillan.