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Dr. Edward Adelbert Doisy (November 3, 1893 – October 23, 1986) was an American biochemist, he was awarded the Nobel Prize in Physiology or Medicine in 1943 with Henrik Dam for their discovery of vitamin K and its chemical structure.
Doisy was born at Hume, Illinois, on November 3, 1893. He completed his A.B. degree in 1914 and his M.S. degree in 1916 from the University of Illinois at Urbana-Champaign. He completed his Ph.D. in 1920 from Harvard University.
For many years Doisy was a professor at Saint Louis University and has many rememberances at that school's medical campus.
He also competed with Adolf Butenandt at the discovery of estronein 1930. They discovered the substance independently but Butenandt was awarded with the Nobel Prize in Chemistry in 1939.
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Nobel Prize in Physiology or Medicine (1943)
