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Carl Ferdinand Cori

(1896 – 1984) and his wife Gerty Theresa Cori (1896 – 1957), b. Prague, Czech. -  Both trained as physicians, received a Nobel Prize in 1947 for their discovery of how glycogen (animal starch), a derivative of glucose , is broken down and resynthesized in the body, for use as a store and source of energy. In 2004 both were designated a National Historic Chemical Landmark in recognition of their work that elucidated carbohydrate metabolism.