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Clarence Dennis : ウィキペディア英語版 | Clarence Dennis
Clarence Dennis, M. D., Ph.D., (June 16, 1909 – July 11, 2005) was an American cardiothoracic surgeon best known for his work in pioneering cardiopulmonary bypass (CPB). He had invented one of the first heart-lung bypass machines, and in 1951 he became the first to use such a device during an open-heart operation. ==Background== Dennis was born in St. Paul, Minnesota on June 16, 1909, the son of Warren, a surgeon, and Clara Van Orman Dennis. He completed his MD at Johns Hopkins in 1935 and did his surgical residency at the University of Minnesota.〔
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