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| | Doisy, Edward Adelbert (Site not responding. Last check: 2007-10-21) |
 | | Doisy earned his bachelor's and master's degrees at the University of Illinois and his Ph.D. at Harvard University (1920). |
 | | Doisy and his associates isolated the sex hormones estrone (theelin, 1929; the first estrogen to be crystallized), estriol (theelol, 1930), and estradiol (dihydrotheelin, 1935). |
 | | Vitamin K, a substance that encourages blood clotting, had been identified by Dam, and in 1936-39 Doisy isolated two forms of the vitamin, determined their chemical structures, and synthesized the vitamin. |
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